Janzen, D. H. (1977). Use of Santa Rosa National Park and Corcovado National Park, Costa Rica, by biologists. [S.l]: Pennsylvania.
Citación estilo ChicagoJanzen, Daniel H. Use of Santa Rosa National Park and Corcovado National Park, Costa Rica, By Biologists. [S.l]: Pennsylvania, 1977.
Cita MLAJanzen, Daniel H. Use of Santa Rosa National Park and Corcovado National Park, Costa Rica, By Biologists. [S.l]: Pennsylvania, 1977.
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