APA-viite (7. p.)

Polit, D. F., & Hungler, B. P. (1978). Nursing research: Principles and methods. Lippincott.

Chicago-viite (17. p.)

Polit, Denise F., ja Bernadette P. Hungler. Nursing Research: Principles and Methods. Philadelphia: Lippincott, 1978.

MLA-viite (9. p.)

Polit, Denise F., ja Bernadette P. Hungler. Nursing Research: Principles and Methods. Lippincott, 1978.