APA-Zitierstil (7. Ausg.)

Levy, W., & Hallowell, C. (1994). Green perspectives: Thinking and writing about nature and the environment. HarperCollins College Publishers.

Chicago-Zitierstil (17. Ausg.)

Levy, Walter, und Christopher Hallowell. Green Perspectives: Thinking and Writing About Nature and the Environment. New York: HarperCollins College Publishers, 1994.

MLA-Zitierstil (9. Ausg.)

Levy, Walter, und Christopher Hallowell. Green Perspectives: Thinking and Writing About Nature and the Environment. HarperCollins College Publishers, 1994.