APA (7th ed.) Citation

Polit & Beck. (2004). Nursing research: Principles and methods (7th ed.). Lippincott Williams & Wilkins.

Chicago Style (17th ed.) Citation

Polit and Beck. Nursing Research: Principles and Methods. 7th ed. Philadelphia: Lippincott Williams & Wilkins, 2004.

MLA (8th ed.) Citation

Polit and Beck. Nursing Research: Principles and Methods. 7th ed. Lippincott Williams & Wilkins, 2004.