Gaya APA

Barnum, B, J, S. (1994). NURSING THEORY : Analysis, Applications, Evaluation (Ed. 4). Philadelphia: J.B. Lippincott Company.

Gaya MLA

Barnum, Barbara, J, Stevents. "NURSING THEORY : Analysis, Applications, Evaluation". Ed. 4 Philadelphia: J.B. Lippincott Company, 1994. Text.