Cita APA (7a ed.)

Polit, D., & Beck, C. T. (2004). Essentials of Nursing Research: Methods, Appraisal, and Utilization. Lippicott Williams & Willkins.

Cita Chicago Style (17a ed.)

Polit, Dennise, y Cheryl Tatano Beck. Essentials of Nursing Research: Methods, Appraisal, and Utilization. Lippicott Williams & Willkins, 2004.

Cita MLA (9a ed.)

Polit, Dennise, y Cheryl Tatano Beck. Essentials of Nursing Research: Methods, Appraisal, and Utilization. Lippicott Williams & Willkins, 2004.