Style de citation APA (7e éd.)

Coggins, R. S., & Hefford, R. K. (1966). The practical geographers (2nd ed.). Longmans.

Style de citation Chicago (17e éd.)

Coggins, R. S., et R. K. Hefford. The Practical Geographers. 2nd ed. Victoria: Longmans, 1966.

Style de citation MLA (9e éd.)

Coggins, R. S., et R. K. Hefford. The Practical Geographers. 2nd ed. Longmans, 1966.