Clarke, J. I. (1972). Population geography / by John I. Clarke (2nd ed.). Pergamon.
Chicago Style (17th ed.) CitationClarke, John I. Population Geography / by John I. Clarke. 2nd ed. Oxford: Pergamon, 1972.
MLA (9th ed.) CitationClarke, John I. Population Geography / by John I. Clarke. 2nd ed. Pergamon, 1972.
Warning: These citations may not always be 100% accurate.