Cumming, J. C. (1955). New sales promotion in textile industry. Fairchild.
Dyfyniad Arddull ChicagoCumming, James C. New Sales Promotion in Textile Industry. New York: Fairchild, 1955.
Dyfyniad MLACumming, James C. New Sales Promotion in Textile Industry. Fairchild, 1955.
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