APA-viite (7. p.)

Pepper, D. (1984). The roots of modern environmentalism. Routledge.

Chicago-viite (17. p.)

Pepper, David. The Roots of Modern Environmentalism. London: Routledge, 1984.

MLA-viite (9. p.)

Pepper, David. The Roots of Modern Environmentalism. Routledge, 1984.