Wildlife conservation
Recopilación de leyes de parques nacionales, reservas y conservacion de flora y fauna silvestres del Ecuador 1926-1977
1977
Paucar M., Angel |
Recomendaciones para la conservacion de la vida salvaje y el establicimienton de parques y reservas nacionales en el Peru
Grimwood, I. R. |
Endangered bird species in the Korean peninsula
1987
Sonobe, Koichiro |
Protection, conservation, and management of threatened and endangered species in Pakistan
1978
Ferguson, David A. |
Breeding birds of Long Point, Lake Erie : a study in community succession
1981
McCracken, Jon D. |
Bradstreet, Michael S. W. |
Holroyd, Geoffrey L. |
Alaska : the embattled frontier
1971
Laycock, George |
Proceedings of a Symposium on rare and endangered mollusks (Naiads) of the U.S.
1971
Jorgensen, S. E. |
Sharp, R. W. |