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George Schwartz, Ph.D.. (1963). Development of Marketing Theory . New York: South Western Publishing CO.

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George Schwartz, Ph.D.. Development of Marketing Theory. New York: South Western Publishing CO, 1963. Text.

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George Schwartz, Ph.D.. Development of Marketing Theory. New York: South Western Publishing CO, 1963. Text.

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George Schwartz, Ph.D.. Development of Marketing Theory. New York: South Western Publishing CO, 1963. Print.