Dyfyniad APA

Ingram, J. C. (1970). International economic problem (2nd ed.). John Wiley.

Dyfyniad Arddull Chicago

Ingram, James C. International Economic Problem. 2nd ed. NewYork: John Wiley, 1970.

Dyfyniad MLA

Ingram, James C. International Economic Problem. 2nd ed. John Wiley, 1970.

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