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Dyfyniad Arddull ChicagoCravens, David W. Strategic Marketing Management Cases. Boston, MA: McGraw-Hill, 1998.
Dyfyniad MLACravens, David W. Strategic Marketing Management Cases. Boston, MA: McGraw-Hill, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.