Cita APA (7a ed.)

Westman, W. E. (1985). Ecology, impact assessment, and environmental planning. Wiley.

Cita Chicago Style (17a ed.)

Westman, Walter E. Ecology, Impact Assessment, and Environmental Planning. New York, New York: Wiley, 1985.

Cita MLA (9a ed.)

Westman, Walter E. Ecology, Impact Assessment, and Environmental Planning. Wiley, 1985.