Pounds, N. J. G. (1972). Political geography (2d ed.). McGraw-Hill.
Chicagoスタイル(17版)引用形式Pounds, Norman J. G. Political Geography. 2d ed. New York,: McGraw-Hill, 1972.
MLA(8版)引用形式Pounds, Norman J. G. Political Geography. 2d ed. McGraw-Hill, 1972.
警告: この引用は必ずしも正確ではありません.