Gaya APA

Ellis, J, R., Hartley, C, L. (1998). Nursing in Today's World Challenges, Issues, and Trends . Philadelphia: Lippincott-Raven Publisher.

Gaya MLA

Ellis, Janice, Rider., Hartley, Celia, Love. "Nursing in Today's World Challenges, Issues, and Trends". Philadelphia: Lippincott-Raven Publisher, 1998. Teks (Text).