APA aipamena

United Nations. (1972). Guidelines for project evaluation. Oxford & IBH publishing co pvt ltd.

Chicago Style aipamena

United Nations. Guidelines for Project Evaluation. New Delhi: Oxford & IBH publishing co pvt ltd, 1972.

MLA aipamena

United Nations. Guidelines for Project Evaluation. Oxford & IBH publishing co pvt ltd, 1972.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.