Conferencia de las Naciones Unidas sobre el Medio Ambiente y el Desarrollo 1992 CNUMAD : informe nacional de Venezuela 1992
Crocodiles : proceedings of the 7th Working Meeting of the Crocodile Specialist Group of the Species Survival Commission of the International Union for Conservation of Nature and Natural Resources, Caracas, Venezuela, 21 to 28 October 1984 1986 Gorzula, Stefan |
