Janzen, Daniel H. 1988a.
Revisión del 03:57 22 ago 2006 de Lcgarcia (discusión | contribuciones)
Janzen, Daniel H. 1988a. There are differences between tropical and extra-tropical national parks. Oikos 51:121-123. Copenhagen
Janzen, Daniel H. 1988a. There are differences between tropical and extra-tropical national parks. Oikos 51:121-123. Copenhagen