Willis, J. F., & Primack, M. L. (1977). Explorations in economics. Houghton Mifflin.
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Dyfyniad Arddull Chicago
Willis, James Frederick, and Martin L. Primack. Explorations in Economics. Boston: Houghton Mifflin, 1977.
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Dyfyniad MLA
Willis, James Frederick, and Martin L. Primack. Explorations in Economics. Houghton Mifflin, 1977.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.