@Book{043654452, author="Acu{\~{n}}a Delgado, Angel", title="Naturaleza y cultura en el Bajo Urubamba: Amazonia peruana", series="Colecci{\'o}n monogr{\'a}fica / Universidad de Granada 133", year="1992", publisher="Servicio de Publ. de la Univ. de Granada", address="Granada", keywords="Indians of South AmericaPeruUrubamba River Valley; Natural historyPeruUrubamba River Valley; Human ecologyPeruUrubamba River Valley", contents="Literaturverz. S. [271]-274", note="Angel Acu{\~{n}}a Delgado", isbn="8433816195", language="Spanish" }