Gaya APA
Billings, D, M., Stokes, L, G.
(1982).
Medical Surgical Nursing
.
St.Louis:
Mosby Company.
Gaya MLA
Billings, Diane, McGovern., Stokes, Lillian, Gatlin.
"Medical Surgical Nursing".
St.Louis:
Mosby Company,
1982.
Text.