United Nations, United Nations. Department of Public Information. Non-Governmental Organizations Section, & United Nations. Department of Public Information. Non-Governmental Organizations and Institutional Relations Section. (2001). Directory of non-governmental organizations associated with the Department of Public Information, 2001-2002. United Nations.
Chicago Style (17. basım) AtıfUnited Nations, United Nations. Department of Public Information. Non-Governmental Organizations Section, ve United Nations. Department of Public Information. Non-Governmental Organizations and Institutional Relations Section. Directory of Non-governmental Organizations Associated with the Department of Public Information, 2001-2002. New York: United Nations, 2001.
MLA (9th ed.) AtıfUnited Nations, et al. Directory of Non-governmental Organizations Associated with the Department of Public Information, 2001-2002. United Nations, 2001.