World Health Organization, WHO-UNAIDS HIV Vaccine Initiative, World Health Organization. Initiative for Vaccine Research, & World Health Organization. (2002). WHO-UNAIDS guidelines for standard HIV isolation and characterization procedures (2nd ed.). World Health Organization.

World Health Organization, WHO-UNAIDS HIV Vaccine Initiative, World Health Organization. Initiative for Vaccine Research, and World Health Organization. WHO-UNAIDS Guidelines for Standard HIV Isolation and Characterization Procedures. 2nd ed. Geneva: World Health Organization, 2002.

World Health Organization, et al. WHO-UNAIDS Guidelines for Standard HIV Isolation and Characterization Procedures. 2nd ed. World Health Organization, 2002.