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HECTOR Lazo,A.B.. (1977). Marketing . New York: Alexander Hamilton.

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HECTOR Lazo,A.B.. Marketing. New York: Alexander Hamilton, 1977. Text.

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HECTOR Lazo,A.B.. Marketing. New York: Alexander Hamilton, 1977. Text.

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HECTOR Lazo,A.B.. Marketing. New York: Alexander Hamilton, 1977. Print.