MLA

WHO, et al. Guidance On Testing and Counselling for Hiv In Settings Attended by People Who Inject Drugs : Improving Access to Treatment Care and Prevention. WHO Regional Office for the Western Pacific, 2009.

APA

WHO, W., UNAIDS, U., Who Regional Office for the Western Pacific, W. Regional Office for the Western Pacific, & World Health Organization, W. Health Organization. (2009). Guidance on Testing and Counselling for HIV in Settings Attended by People Who Inject Drugs : Improving Access to Treatment Care and Prevention. WHO Regional Office for the Western Pacific.

Chicago

WHO, UNAIDS, Who Regional Office for the Western Pacific, and World Health Organization. Guidance On Testing and Counselling for HIV In Settings Attended by People Who Inject Drugs : Improving Access to Treatment Care and Prevention. : WHO Regional Office for the Western Pacific, 2009.