Bye, R., & Vaish, M. C. (1956). Principles of economics. Appleton-Century-Crofts.
Dyfyniad Arddull ChicagoBye, Raymond, and M. C. Vaish. Principles of Economics. New York: Appleton-Century-Crofts, 1956.
Dyfyniad MLABye, Raymond, and M. C. Vaish. Principles of Economics. Appleton-Century-Crofts, 1956.
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