APA (7th ed.) Citation

Petersen, W. (1979). Malthus / (by) William Petersen. Heinemann.

Chicago Style (17th ed.) Citation

Petersen, William. Malthus / (by) William Petersen. London: Heinemann, 1979.

MLA (9th ed.) Citation

Petersen, William. Malthus / (by) William Petersen. Heinemann, 1979.

Warning: These citations may not always be 100% accurate.