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| Facultad de Ciencias - UNAM | (20) |
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11.
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Third addition to a knowledge of the Batrachia and Reptilia of Costa Rica Cope, Edward Drinker
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12.
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Contributions to our knowledge of the duration of life in vertebrate animals Flower, Stanley S
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13.
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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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14.
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Contribution to the knowledge of the nematodes that parasitize the reptiles of Mexico Caballero, R G
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15.
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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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16.
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Contributions to our knowledge of the duration of life in vertebrate animals Flower, Stanley Smyth
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17.
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A survey of internal oral features of leptodactyloid larvae (Amphibia: Anura) Wassersug, Richard J - W Ronald Heyer
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18.
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How motivation, time devoted to speaking practice, and teaching speaking methodology interfere in the oral performance in intermediate English students at the Foreign Language Department of the University of El Salvador in the Term I-2011. Aguilar Mejía, Sandra Beatriz - Osorio Driotez, Elena Roxana - León Rivera, Ronald Omar
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19.
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How non-participation influences in the oral proficiency development of the students from intermediate intensive english I courses in the Foreign Language Department, at the University of El Salvador, during the semester II -2011. Hernández Hernández , Ileana Patricia - Marcía Herrera , Rosa Arminda - Orantes Pérez , Jocelyn Marcela
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20.
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Collaboration of Business and Science: a Starting Position for Lithuania’s Move to Radical Economic Change, Verslo ir mokslo bendradarbiavimas Lietuvai žengiant radikalių ekonominių permainų link Samulevicius, Jurgis; VGTU
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