APA-viite

Sax, J. L. (1971). Defending the environment: A strategy for citizen action. Alfred A Knopf.

Chicago-tyylinen lähdeviittaus

Sax, Joseph L. Defending the Environment: A Strategy for Citizen Action. New York: Alfred A Knopf, 1971.

MLA-viite

Sax, Joseph L. Defending the Environment: A Strategy for Citizen Action. Alfred A Knopf, 1971.