Dyfyniad APA

Gardner, H. S. (1998). Comparative economic systems (2nd ed.). Harcourt.

Dyfyniad Arddull Chicago

Gardner, H. Stephen. Comparative Economic Systems. 2nd ed. Orlando: Harcourt, 1998.

Dyfyniad MLA

Gardner, H. Stephen. Comparative Economic Systems. 2nd ed. Harcourt, 1998.

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