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Dyfyniad Arddull ChicagoJones, Kenneth George, and James W. Simmons. The Retail Environment. London ; New York: Routledge, 1990.
Dyfyniad MLAJones, Kenneth George, and James W. Simmons. The Retail Environment. Routledge, 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.