APA (7th ed.) Citation

Leedy, P. D. (1980). Practical research: Planning and design (2d ed.). Macmillan.

Chicago Style (17th ed.) Citation

Leedy, Paul D. Practical Research: Planning and Design. 2d ed. New York: Macmillan, 1980.

MLA (9th ed.) Citation

Leedy, Paul D. Practical Research: Planning and Design. 2d ed. Macmillan, 1980.