Gaya APA
Ellis, J, R., Hartley, C, L. (1980).
Nursing in Today's World: Challenges, Issues, and Trends .
Philadelphia:
Lippincott.
Gaya MLA
Ellis, Janice, Rider., Hartley, Celia, Love.
"Nursing in Today's World: Challenges, Issues, and Trends".
Philadelphia:
Lippincott,
1980.
Text.