APA引文

Caldwell, J. C. (1975). The Sahelian drought and its demographic implications. Overseas Liaison Committee, American Council on Education.

Chicago Style (17th ed.) Citation

Caldwell, John C. The Sahelian Drought and Its Demographic Implications. [Washington]: Overseas Liaison Committee, American Council on Education, 1975.

MLA引文

Caldwell, John C. The Sahelian Drought and Its Demographic Implications. Overseas Liaison Committee, American Council on Education, 1975.

警告：这些引文格式不一定是100％准确.