Παραπομπή APA

World Health Organization. (2003). Guidelines for the management of sexually transmitted infections. World Health Organization.

Παραπομπή Chicago Style

World Health Organization. Guidelines for the Management of Sexually Transmitted Infections. Switzerland: World Health Organization, 2003.

Παραπομπή MLA

World Health Organization. Guidelines for the Management of Sexually Transmitted Infections. World Health Organization, 2003.