Dyfyniad APA

Freile, J., Krabbe, N., Piedrahita, P., Buitrón-Jurado, G., Rodríguez-Saltos, C., Ahlman, F., . . . Bonaccorso, E. (2014). Birds, Nangaritza River Valley, Zamora Chinchipe Province, Southeast Ecuador: Update and revision.

Dyfyniad Arddull Chicago

Freile, Juan, Niels Krabbe, Paolo Piedrahita, Galo Buitrón-Jurado, Carlos Rodríguez-Saltos, Fredrik Ahlman, Dusan Brinkhuizen, and Elisa Bonaccorso. Birds, Nangaritza River Valley, Zamora Chinchipe Province, Southeast Ecuador: Update and Revision. 2014.

Dyfyniad MLA

Freile, Juan, et al. Birds, Nangaritza River Valley, Zamora Chinchipe Province, Southeast Ecuador: Update and Revision. 2014.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.