Sasa, M. (1993). Distribution and reprodudion of tbe gray earth snake Geophis brachycephalus (Serpentes: Colubridae) in Costa Rica.
シカゴスタイル引用形Sasa, Mahmood. Distribution and Reprodudion of Tbe Gray Earth Snake Geophis Brachycephalus (Serpentes: Colubridae) in Costa Rica. 1993.
MLA引用形式Sasa, Mahmood. Distribution and Reprodudion of Tbe Gray Earth Snake Geophis Brachycephalus (Serpentes: Colubridae) in Costa Rica. 1993.
警告: この引用は必ずしも正確ではありません.