Dyfyniad APA

Massey, A. (1987). A Population Survey of Alouatta palliata, Cebus capucinus and Ateles geoffroyi at Palo Verde, Costa Rica.

Dyfyniad Arddull Chicago

Massey, Adrianne. A Population Survey of Alouatta Palliata, Cebus Capucinus and Ateles Geoffroyi At Palo Verde, Costa Rica. 1987.

Dyfyniad MLA

Massey, Adrianne. A Population Survey of Alouatta Palliata, Cebus Capucinus and Ateles Geoffroyi At Palo Verde, Costa Rica. 1987.

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