United Nations. Special Sahelian Office. (1974). Outline analysis for mining sector: Sudano-Sahelian region. s.n.].
Chicagoスタイル(17版)引用形式United Nations. Special Sahelian Office. Outline Analysis for Mining Sector: Sudano-Sahelian Region. [s.l.: s.n.], 1974.
MLA(8版)引用形式United Nations. Special Sahelian Office. Outline Analysis for Mining Sector: Sudano-Sahelian Region. s.n.], 1974.
警告: この引用は必ずしも正確ではありません.