CALLENBACH; ERNEST. (2004). ECOLOGY - A POCKET GUIDE (REPRINT.). UNIVERSITIES PRESS.
Chicagoスタイル(17版)引用形式CALLENBACH; ERNEST. ECOLOGY - A POCKET GUIDE. REPRINT. HYDERABAD: UNIVERSITIES PRESS, 2004.
MLA(9版)引用形式CALLENBACH; ERNEST. ECOLOGY - A POCKET GUIDE. REPRINT. UNIVERSITIES PRESS, 2004.
警告: この引用は必ずしも正確ではありません.