Johnston, R. J. (1976). The world trade system: Some enquiries into its spatial structure. St. Martin's Press.
Chicagoスタイル(17版)引用形式Johnston, Ronald John. The World Trade System: Some Enquiries into Its Spatial Structure. New York: St. Martin's Press, 1976.
MLA(9版)引用形式Johnston, Ronald John. The World Trade System: Some Enquiries into Its Spatial Structure. St. Martin's Press, 1976.
警告: この引用は必ずしも正確ではありません.