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1.
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A contribution to the knowledge of the l fauna of El Petén, Guatemala Stuart, Laurence Cooper
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2.
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Third addition to a knowledge of the Batrachia and Reptilia of Costa Rica Cope, Edward Drinker
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3.
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Some additions to the knowledge of the anatomy, principally of the vascular system, of Hatteria, Crocodilus and certain Lacertilia Beddard, Frank E
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4.
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A contribution to a knowledge of the herpetology of a portion of the savanna region of central Petén, Guatemala Stuart, Laurence Cooper
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5.
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Biogeography, current knowledge and conservation of threatened vascular plants characteristic of Mexican temperate forests Vega, IL - Ayala, OA - Contreras-Medina, R - Vargas, AP
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6.
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Temperature preference and acclimation in Poecilia sphenops (Pisces, Poeciliidae) Buckle, LF - Espina, S - Hernández, M
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7.
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Alternative control measures for cysticercosis Flisser, A - Sarti, E - Lightowlers, M - Schantz, PM
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8.
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Epidemiological studies of taeniosis and cysticercosis in Latin America Flisser, A
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9.
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Risk factors and control measures for taeniosis/cysticercosis Flisser, A
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10.
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Mexican native trouts: a review of their history and current systematic and conservation status Hendrickson, DA - Perez, HE - Findley, LT - Forbes, W - Tomelleri, JR - Mayden, RL - Nielsen, JL - Jensen, B - Campos, GR - Romero, AV - van der Heiden, A - Camarena, F - de Leon, FJG
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