APA (7e ed.) Bronvermelding

United Nations. Special Sahelian Office. (1974). Outline analysis for mining sector: Sudano-Sahelian region. s.n.].

Chicago (17e ed.) Bronvermelding

United Nations. Special Sahelian Office. Outline Analysis for Mining Sector: Sudano-Sahelian Region. [s.l.: s.n.], 1974.

MLA (8e ed.) Bronvermelding

United Nations. Special Sahelian Office. Outline Analysis for Mining Sector: Sudano-Sahelian Region. s.n.], 1974.