APA (7th ed.) Citation

Clarke, J. I. (1966). Population geography ([Reprinted].). Pergamon Press.

Chicago Style (17th ed.) Citation

Clarke, John Innes. Population Geography. [Reprinted]. Oxford [etc.]: Pergamon Press, 1966.

MLA (9th ed.) Citation

Clarke, John Innes. Population Geography. [Reprinted]. Pergamon Press, 1966.