Dyfyniad APA

Bingham,Robert C. (1966). Economic concepts: Programmed approach. McGraw Hill.

Dyfyniad Arddull Chicago

Bingham,Robert C. Economic Concepts: Programmed Approach. McGraw Hill, 1966.

Dyfyniad MLA

Bingham,Robert C. Economic Concepts: Programmed Approach. McGraw Hill, 1966.

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