Dyfyniad APA

Watson, D. S. (1982). Price theory and its uses (5th ed.). National Book Store.

Dyfyniad Arddull Chicago

Watson, Donald Stevenson. Price Theory and Its Uses. 5th ed. Manila: National Book Store, 1982.

Dyfyniad MLA

Watson, Donald Stevenson. Price Theory and Its Uses. 5th ed. National Book Store, 1982.

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