APA-referens (7:e uppl.)

Youssef, E. A., Bisch, S., Hiejnam, S., Hirschfeld, M., Land, S., Leenders, F., . . . Stilwell, B. (1997). Nursing practice around the world. World Health Organization.

Chicago-referens (17:e uppl.)

Youssef, E.Y. Abou, et al. Nursing Practice Around the World. Geneva: World Health Organization, 1997.

MLA-referens (8:e uppl.)

Youssef, E.Y. Abou, et al. Nursing Practice Around the World. World Health Organization, 1997.