Purkitt, H. E. (1996). World politics 96/97. Dushkin Pub. Group.
Chicagoスタイル(17版)引用形式Purkitt, Helen E. World Politics 96/97. Guilford, Conn.: Dushkin Pub. Group, 1996.
MLA(8版)引用形式Purkitt, Helen E. World Politics 96/97. Dushkin Pub. Group, 1996.
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