Gaya APA

Alligood, A, M, T, M, R. (2006). Nursing theories and their work (6). St. Louis: Elsevier Mosby.

Gaya MLA

Alligood, Ann, Marriner, Tomey,, Martha, Raile. "Nursing theories and their work". 6 St. Louis: Elsevier Mosby, 2006. Text.