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- Livio, Mario
- Livy
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- Llewellyn, Grace
- Llewellyn, Richard
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- Lloyd, John
- Lloyd, Josie
- Lloyd Wright, Frank
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- Lobel, Arnold
- Lobsang Rampa, T.
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- Locke, John
- Lockhart, E.
- Lockwood, Cara
- Lockyer, Herbert
- Lodge, David
- Loeb, Jeph
- Loeb, Paul Rogat
- Loe, Erlend
- Loewen, James W.
- Lofficier, Jean-Marc›
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- Lofts, Norah
- Logsdon, Gene
- Logston, Anne
- Logue, Christopher
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- London, Jack
- London, Jonathan
- London, Julia
- Longacre, Doris Janzen
- Longenecker, Richard N.
- Longfellow, Henry Wadsworth
- Longford, Elizabeth
- Long, Jeff
- Longman, Tremper
- Long, Melinda
- Long, Steve
- Long, Thomas G.
- Longyear, Barry B.
- Lönnrot, Elias
- Loomis, Roger Sherman
- Loomis, Susan Herrmann
- Loos, Anita
- Lopate, Phillip
- Lopez, Barry
- Lopshire, Robert
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- Lord, Bette Bao
- Lord, Cynthia
- Lorde, Audre
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- Lorenz, Konrad
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- Lorrah, Jean
- Lott, Bret
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- Louv, Richard
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- Lovecraft, H.P.
- Love, Kathy
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- Lovelace, Merline
- Lovell, Jim
- Lovell, Mary S.
- Lovelock, J.E.
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- Lowrey, Janette Sebring
- Lowry, Brian
- Lowry, Lois
- Lowry, Malcolm
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- Luceno, James
- Luciano DeCrescenzo
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