Dyfyniad APA

Stonier, A., & Hague, D. (1972). Textbook of economic theory (4th.). Longman Group Limited.

Dyfyniad Arddull Chicago

Stonier, A., and D. Hague. Textbook of Economic Theory. 4th. London: Longman Group Limited, 1972.

Dyfyniad MLA

Stonier, A., and D. Hague. Textbook of Economic Theory. 4th. Longman Group Limited, 1972.

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