APA (7th ed.) Citation

Leedy, P., & Ormrod, J. E. (2010). Practical research: Planning and design (9th ed.). Pearson Education International.

Chicago Style (17th ed.) Citation

Leedy, Paul, and Jeanne Ellis Ormrod. Practical Research: Planning and Design. 9th ed. Upper saddle river, New Jersey: Pearson Education International, 2010.

MLA (9th ed.) Citation

Leedy, Paul, and Jeanne Ellis Ormrod. Practical Research: Planning and Design. 9th ed. Pearson Education International, 2010.