Cita APA

Owen, O. S. 1., & Owen, O. S. 1. (1975). Natural resource conservation: An ecological approach (2. edition.). New York, New York: Macmillan.

Citación estilo Chicago

Owen, Oliver S. 1920, y Oliver S. 1920 Owen. Natural Resource Conservation: An Ecological Approach. 2. edition. New York, New York: Macmillan, 1975.

Cita MLA

Owen, Oliver S. 1920, y Oliver S. 1920 Owen. Natural Resource Conservation: An Ecological Approach. 2. edition. New York, New York: Macmillan, 1975.