APA (7th ed.) Citation

Clarke, J. I. (1971). Population geography and the developing countries. Pergamon Pr.

Chicago Style (17th ed.) Citation

Clarke, John Innes. Population Geography and the Developing Countries. Oxford: Pergamon Pr, 1971.

MLA (9th ed.) Citation

Clarke, John Innes. Population Geography and the Developing Countries. Pergamon Pr, 1971.

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