Dyfyniad APA

Sasa, M. (1993). Distribution and reprodudion of tbe gray earth snake Geophis brachycephalus (Serpentes: Colubridae) in Costa Rica.

Dyfyniad Arddull Chicago

Sasa, Mahmood. Distribution and Reprodudion of Tbe Gray Earth Snake Geophis Brachycephalus (Serpentes: Colubridae) in Costa Rica. 1993.

Dyfyniad MLA

Sasa, Mahmood. Distribution and Reprodudion of Tbe Gray Earth Snake Geophis Brachycephalus (Serpentes: Colubridae) in Costa Rica. 1993.

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