Cita APA (7a ed.)

Christman, R. F. (1973). The natural environment: Wastes and control. Goodyear.

Cita Chicago Style (17a ed.)

Christman, Russell F. The Natural Environment: Wastes and Control. Pacific Palisades (California): Goodyear, 1973.

Cita MLA (9a ed.)

Christman, Russell F. The Natural Environment: Wastes and Control. Goodyear, 1973.