Caldwell, J. C. (1975). The Sahelian drought and its demographic implications. Overseas Liaison Committee, American Council on Education.
Citação do estilo Chicago (17ª ed.)Caldwell, John C. The Sahelian Drought and Its Demographic Implications. [Washington]: Overseas Liaison Committee, American Council on Education, 1975.
Citação MLA (8ª ed.)Caldwell, John C. The Sahelian Drought and Its Demographic Implications. Overseas Liaison Committee, American Council on Education, 1975.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.