APA (7th ed.) Citation

Leedy, P. D. (1997). Practical research: Planning and design (6th ed.). Merrill.

Chicago Style (17th ed.) Citation

Leedy, Paul D. Practical Research: Planning and Design. 6th ed. Upper Saddle River, N.J: Merrill, 1997.

MLA (9th ed.) Citation

Leedy, Paul D. Practical Research: Planning and Design. 6th ed. Merrill, 1997.