Dyfyniad APA

A. Bussing, W. (2008). A new species of poeciliid fish, Poeciliopsis santaelena, from Peninsula Santa Elena, Area de Conservación Guanacaste, Costa Rica.

Dyfyniad Arddull Chicago

A. Bussing, Wlliam. A New Species of Poeciliid Fish, Poeciliopsis Santaelena, From Peninsula Santa Elena, Area De Conservación Guanacaste, Costa Rica. 2008.

Dyfyniad MLA

A. Bussing, Wlliam. A New Species of Poeciliid Fish, Poeciliopsis Santaelena, From Peninsula Santa Elena, Area De Conservación Guanacaste, Costa Rica. 2008.

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