APA-viite (7. p.)

Pepper, D., Youngs, M., & Perkins , J. (1984). The roots of modern environmentalism with material. Routledge.

Chicago-viite (17. p.)

Pepper, David, Martyn Youngs, ja John Perkins. The Roots of Modern Environmentalism with Material. London: Routledge, 1984.

MLA-viite (9. p.)

Pepper, David, et al. The Roots of Modern Environmentalism with Material. Routledge, 1984.