Gaya APA

Varner, D, D, I, M. (1991). Medical surgical nursing: a nursing process approach I . Philadelphia: W. B. Saunders Co..

Gaya MLA

Varner, Donna, D., Ignatavicius,, Marilyn. "Medical surgical nursing: a nursing process approach I". Philadelphia: W. B. Saunders Co., 1991. Text.