APA-viite

Owen, O. . S. (1980). Natural resource conservation: : an ecological approach/3rd ed. MacMillan press.

Chicago-tyylinen lähdeviittaus

Owen, Oliver S. Natural Resource Conservation: : An Ecological Approach/3rd Ed. New York: MacMillan press, 1980.

MLA-viite

Owen, Oliver S. Natural Resource Conservation: : An Ecological Approach/3rd Ed. MacMillan press, 1980.