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- La Sala, Ryan
- Labatut, Benjamin
- Labyrinth Road
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- Lachlan, M. D.
- Lackey, Mercedes
- Lacombe, Benjamin
- Lacroix, Joseph
- Lacruz, Gabriela Romero
- Lada, Robert
- Ladowska, Asia
- Ladronn, José
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- Lagerkvist, Pär
- Lagerlöf, Selma
- Lagerqvist, Camilla
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- Laidlaw, Kim
- Lainoff, Lillie
- Laird, Peter
- Lakshminarayan, Lavanya
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- LambCat
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- Lame Mage Productions
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- Land, Greg
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- Landén, Anders
- Landers, Melissa
- Landis, Max
- Landro, Valentine De
- Landy, Derek
- Lang, Ryan
- Langan, John
- Langan, Sarah
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- Langmead, Oliver K.
- Langridge, Graham
- Lansdale, Joe R
- Lanthanum, Kakao
- Lanzing, Jackson
- Lao-Tzu
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- Lapite, Shade
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- Lares, Mariely
- Lark, Michael
- Larkwood, A. K.
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- Larraz, Pepe
- Larrington, Carolyne
- Larroca, Salvador
- Larsen, Charlotte Mandrup
- Larsen, Christine
- Larson, Abigail
- Larson, Gary
- Larsson, Eva-Lena
- Larsson, Gertrud
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- Lastow, Orest
- Latham, Martin
- Latimer, E.
- Latour, Jason
- Lau, Jonathan
- Lauffray, Mathieu
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- Launius, Richard
- Laurence King
- Laurence King Publishing
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- Lavender, Gemma
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- Lawson, Stephan
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- Lindholm, Ola
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- Lindqvist, Herman
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- Lindqvist, John Ajvide
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- Liu, Ken
- Liu, Marjorie
- Liu, Marjorie M
- Liu, Tao Tao
- Liu, Yang
- Living The Line
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- Livingstone, Ian
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- Lloyd, John
- Lloyd, Mrs Guy E
- Lloyd, Stephen
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- Lobb, M. K.
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- London, Jack
- Lonely Planet
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- Longergan, Jesse
- Loo, Jason
- Lookout Games
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- Louise Bäckelin Förlag
- loundraw
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- Lovereads
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- Lowery, Ken
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- Lucey, Rory
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- Luna Fox Press
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- Lundberg, Björn
- Lundberg, Magda
- Lundberg och Lennse Förlag
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- Lundgren, Andrea
- Lundgren, Anna
- Lundie, Isobel
- Lundin, Jenny
- Lundkvist, Nils
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- Lundqvist, Charlotta
- Lundström, Andreas
- Lundvall, Madelene
- Lupano, Wilfrid
- Lupo, Kesia
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- Lux, Claudia
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- Lynch, P J
- Lynch, Paul
- Lynch, Scott
- Lynch, Stuart
- Lynn, Hannah
- LYO
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- Lyons, Jenn
- Lyons, Steve
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- Lystring
- Lågeffektiva Förlaget
- Läromedel japanska
- Löf, Nils-Petter
- Lönegård, Petter
- Lönnroth, Lars
- Löwenhielm, Gussy
- Lööf, Jan