APA način citiranja

van der Wal, R., & Loutfi, D. (2017). Pre-exposure prophylaxis for HIV prevention in East and Southern Africa. Can J Public Health.

Čikaški stil citiranja

van der Wal, Ran, i David Loutfi. "Pre-exposure Prophylaxis for HIV Prevention in East and Southern Africa." Can J Public Health 2017.

MLA način citiranja

van der Wal, Ran, i David Loutfi. "Pre-exposure Prophylaxis for HIV Prevention in East and Southern Africa." Can J Public Health 2017.