LAMB CHARLES W. (1992). PRINCIPLES OF MARKETING. SOUTH-WESTERN COLLEGE PUBLISHING CO.
Lua i Stíl Chicago (17ú heag.)LAMB CHARLES W. PRINCIPLES OF MARKETING. CINCINNATI: SOUTH-WESTERN COLLEGE PUBLISHING CO, 1992.
Lua MLA (9ú heag.)LAMB CHARLES W. PRINCIPLES OF MARKETING. SOUTH-WESTERN COLLEGE PUBLISHING CO, 1992.
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