APA aipamena

United Nations Office at Vienna. Center for Social Development and Humanitarian Affairs. (1988). Handbook of organizations active in the field of aging. United Nations.

Chicago Style aipamena

United Nations Office at Vienna. Center for Social Development and Humanitarian Affairs. Handbook of Organizations Active in the Field of Aging. New York: United Nations, 1988.

MLA aipamena

United Nations Office at Vienna. Center for Social Development and Humanitarian Affairs. Handbook of Organizations Active in the Field of Aging. United Nations, 1988.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.