1.
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Cyanobacteria containing biofilms from a mayan monument in Palenque, Mexico Ramirez, M. - Hernandez-Marine, M. - Novelo, E. - Roldan, M.
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2.
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A graphic panorama of the freshwater algae from Mexico, Un Panorama gráfico de las algas de agua dulce de México Novelo, E. - Tavera, R.
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3.
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Immunodiagnosis of human cysticercosis: ELISA and immunoelectrophoresis. Espinoza, B. - Flisser, A. - Plancarte, A. - Larralde, C.
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4.
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The concise knowledge library: natural history Lydekker, Richard
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5.
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A contribution to the knowledge of the l fauna of El Petén, Guatemala Stuart, Laurence Cooper
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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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Plant propagation and the ecological restoration of Mexican tropical deciduous forests Bonfil-Sanders, María del Consuelo - Trejo, I
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8.
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Use of curatorial data bases as an element to reconstruct taxonomic knowdlege: an example with Mexican papilionids and pierids (Insecta: Lepidoptera) Oñate Ocaña, L - Llorente Bousquets, Jorge Enrique
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9.
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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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10.
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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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