Polit, D. F. (1991). Nursing research: Principles and methods (4th ed.). Lippincott.
Citación estilo ChicagoPolit, Denise F. Nursing Research: Principles and Methods. 4th ed. Philadelphia: Lippincott, 1991.
Cita MLAPolit, Denise F. Nursing Research: Principles and Methods. 4th ed. Lippincott, 1991.
Warning: These citations may not always be 100% accurate.