Pepper, D. (1984). The roots of modern environmentalism. Routledge.
Chicagoスタイル(17版)引用形式Pepper, David. The Roots of Modern Environmentalism. London: Routledge, 1984.
MLA(9版)引用形式Pepper, David. The Roots of Modern Environmentalism. Routledge, 1984.
警告: この引用は必ずしも正確ではありません.