APA (7th ed.) Citation

Mertens, T. (1999). Basic science in HIV/AIDS: An update. World Health Organization.

Chicago Style (17th ed.) Citation

Mertens, T.E. Basic Science in HIV/AIDS: An Update. Geneva: World Health Organization, 1999.

MLA (9th ed.) Citation

Mertens, T.E. Basic Science in HIV/AIDS: An Update. World Health Organization, 1999.