Ed. by Unstead , J. F. (1935). A systematic regional geography: A post - matriculation course. un. pr..
Chicago Style (17. basım) AtıfEd. by Unstead , John Frederick. A Systematic Regional Geography: A Post - Matriculation Course. London: un. pr., 1935.
MLA (9th ed.) AtıfEd. by Unstead , John Frederick. A Systematic Regional Geography: A Post - Matriculation Course. un. pr., 1935.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..