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| 420 Inglés e inglés antiguo | (5) |
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| Facultad de Ciencias - UNAM | (23) |
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Innovative Knowledge: Its Origin, Detachment and Usage in Production Practice, Inovatyvios žinios: jų kilmė, išskyrimas ir naudojimas gamybinėje veikloje Maceika, Augustinas; Vilnius Gediminas Technical University - Jančiauskas, Bronius; Vilnius Gediminas Technical University
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12.
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Contributions to our knowledge of the duration of life in vertebrate animals Flarer, Stanley Smith
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13.
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Main factors that determine students´ level of proficiency in English Intermediate I of the Foreign Languages Department of the University of El Salvador during the semester II-2011. Pérez González, Claudia Patricia - Orellana Villeda, Ingrid Mariela - Figueroa Urbano, Vicky Evangelina - Ortiz Rivera, Ana Blanca Guadalupe
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14.
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A contribtion to our knowledge of the herpetofauna of the Mexican state of Aguascalientes Anderson, James Donald - William Z Lidicker, Jr
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15.
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Contributions to the knowledge of the systematic arrangement and anatomy of certain genera and species of Squamata Beddard, Frank E
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16.
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A contribution to the knowledge of the l fauna of El Petén, Guatemala Stuart, Laurence Cooper
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17.
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Second addition to the knowledge of the Batrachia and Reptilia of Costa Pica Cope, Edward Drinker
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18.
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Third addition to a knowledge of the Batrachia and Reptilia of Costa Rica Cope, Edward Drinker
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19.
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Contributions to our knowledge of the duration of life in vertebrate animals Flower, Stanley S
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20.
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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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