Gaya APA

McEwen, M., Wills, E, M. (2017). Theoretical Basis for Nursing Second Edition (2). : LIPPINCOTT WILLIAMS& WILKINS.

Gaya MLA

McEwen, Melanie., Wills, Evelyn, M.. "Theoretical Basis for Nursing Second Edition". 2 : LIPPINCOTT WILLIAMS& WILKINS, 2017. Text.