Cain, H. R. (1963). Human and economic geography for certificate students. Longmans.
Chicago Style (17. basım) AtıfCain, Harry Reginald. Human and Economic Geography for Certificate Students. London: Longmans, 1963.
MLA (9th ed.) AtıfCain, Harry Reginald. Human and Economic Geography for Certificate Students. Longmans, 1963.
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