Enlace original:
https://wedocs.unep.org//handle/20.500.11822/22534
Food and Agriculture Organization of the United Nations
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United Nations Environment Programme
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[Bulletin d'information sur les ressources génétiques animales No. 12, Boletin de Informacion Sobre Recursos Geneticos Animales No. 12]
,
[Animal Genetic Resources Information No. 12]
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Animal Genetic Resources Information No. 12