APA Style
Polit, D, F. (2004).
Nursing research principles and methods .
1325 Avenue of the Americas, N:
Lippincott Williams & Wilkins.
MLA Style
Polit, Denise, F..
"Nursing research principles and methods".
1325 Avenue of the Americas, N:
Lippincott Williams & Wilkins,
2004.
Text.