APA način citiranja (7. izdanje)

Pursell, C. W. (1973). From conservation to ecology: The development of environmental concern. Crowell.

Čikaški stil citiranja (17. izdanje)

Pursell, Carroll W. From Conservation to Ecology: The Development of Environmental Concern. New York: Crowell, 1973.

MLA način citiranja (9. izdanje)

Pursell, Carroll W. From Conservation to Ecology: The Development of Environmental Concern. Crowell, 1973.