United Nations. Special Sahelian Office. (1973). Agriculture: Outline analysis of agriculture problem area : Sudano-Sahelian zone. The Office.
Citação do estilo Chicago (17ª ed.)United Nations. Special Sahelian Office. Agriculture: Outline Analysis of Agriculture Problem Area : Sudano-Sahelian Zone. [New York]: The Office, 1973.
Citação MLA (8ª ed.)United Nations. Special Sahelian Office. Agriculture: Outline Analysis of Agriculture Problem Area : Sudano-Sahelian Zone. The Office, 1973.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.