O'SULLIVIAN, P. (1981). Geographical economics. John Wiley and Sons.
Chicagoスタイル(17版)引用形式O'SULLIVIAN, Patrick. Geographical Economics. New York: John Wiley and Sons, 1981.
MLA(9版)引用形式O'SULLIVIAN, Patrick. Geographical Economics. John Wiley and Sons, 1981.
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