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Dyfyniad Arddull ChicagoSmith, Jeanette. The PUBLICITY KIT: A Complete Guide for Entrepreneurs, Small Businesses, and Non-profit Organizations. New York: Wiley, 1991.
Dyfyniad MLASmith, Jeanette. The PUBLICITY KIT: A Complete Guide for Entrepreneurs, Small Businesses, and Non-profit Organizations. Wiley, 1991.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.