Style de citation APA (7e éd.)

Leedy, P. D. (1985). Practical research: Planning and design (3rd ed.). Macmillan.

Style de citation Chicago (17e éd.)

Leedy, Paul D. Practical Research: Planning and Design. 3rd ed. New York: Macmillan, 1985.

Style de citation MLA (9e éd.)

Leedy, Paul D. Practical Research: Planning and Design. 3rd ed. Macmillan, 1985.