Gaya APA

Varney, H., Kozier, B. (2012). Leadership Roles and Management Functions in Nursing . Philadelphia: Lippincott William & Wilkins.

Gaya MLA

Varney, Helen., Kozier, Barbara....[et.al]. "Leadership Roles and Management Functions in Nursing". Philadelphia: Lippincott William & Wilkins, 2012. Textbook.