World Trade Press & ebrary, Inc. (2010). United States: Communications. World Trade Press.
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Dyfyniad Arddull Chicago
World Trade Press and Inc ebrary. United States: Communications. Petaluma, Calif.: World Trade Press, 2010.
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Dyfyniad MLA
World Trade Press and Inc ebrary. United States: Communications. World Trade Press, 2010.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.