1.
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A contribution to the knowledge of the variations of the tree frog Hyla regilla Test, Frederick Cleveland
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2.
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Contributions to our knowledge of the duration of life in vertebrate animals Flower, Stanley Smyth
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3.
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Additions to the knowledge of the herpetofauna of Oaxaca, Mexico Hobart M Smith
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4.
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Spindly leg syndrome in frogs: present knowledge and future directions to elucidate its causes Marlett, James H - Victor B Eichler - Michelle Fellows-Hagemeister
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5.
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The concise knowledge library: natural history Lydekker, Richard
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6.
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Contributions to our knowledge of the duration of life in vertebrate animals Flarer, Stanley Smith
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7.
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Current State of Knowledge of the Benthic Marine Algae of the Mexican Tropical Pacific. González González, Jorge - León Tejera, Hilda Patricia - Candelaria Silva, Carlos Federico - Gold Morgan, Michele Louise - Serviere, E - León Alvarez, Daniel - Fragoso, D
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