Cita APA

Pereira, A. I., & Barrantes, G. (2009). Distribution and density of avifauna in Península de Osa, Costa Rica (1990-1991).

Chicago Style Citation

Pereira, Ana I., i Gilbert Barrantes. Distribution and Density of Avifauna in Península De Osa, Costa Rica (1990-1991). 2009.

Cita MLA

Pereira, Ana I., i Gilbert Barrantes. Distribution and Density of Avifauna in Península De Osa, Costa Rica (1990-1991). 2009.