APA-viite

Singh, J. A., & Mills, E. J. (2005). The Abandoned Trials of Pre-Exposure Prophylaxis for HIV: What Went Wrong? Public Library of Science.

Chicago-tyylinen lähdeviittaus

Singh, Jerome A., ja Edward J. Mills. The Abandoned Trials of Pre-Exposure Prophylaxis for HIV: What Went Wrong? Public Library of Science, 2005.

MLA-viite

Singh, Jerome A., ja Edward J. Mills. The Abandoned Trials of Pre-Exposure Prophylaxis for HIV: What Went Wrong? Public Library of Science, 2005.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.