APA (7th ed.) Citation

Leedy, P. D. (1985). Practical research: Planning and design (3. ed.). Macmillan [u.a.].

Chicago Style (17th ed.) Citation

Leedy, Paul D. Practical Research: Planning and Design. 3. ed. New York, NY [u.a.]: Macmillan [u.a.], 1985.

MLA (9th ed.) Citation

Leedy, Paul D. Practical Research: Planning and Design. 3. ed. Macmillan [u.a.], 1985.