Cofnodi Dyfyniadau
Dyfyniad APA
Boyes,William, & Melvin, M. (1991). Economics. Houghton Mifflin.
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Dyfyniad Arddull Chicago
Boyes,William, and Michael Melvin. Economics. Boston: Houghton Mifflin, 1991.
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Dyfyniad MLA
Boyes,William, and Michael Melvin. Economics. Houghton Mifflin, 1991.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.