APA引用形式

(Firm), P. (1997). The Guide to graduate environmental programs. Washington, D.C.

シカゴスタイル引用形

(Firm), ProQuest. The Guide to Graduate Environmental Programs. Washington, D.C, 1997.

MLA引用形式

(Firm), ProQuest. The Guide to Graduate Environmental Programs. Washington, D.C, 1997.

警告: この引用は必ずしも正確ではありません.