BUELL, V. P. (1985). Marketing Management A Strategic Planning Approach Victor P. Buell. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)BUELL, Victor P. Marketing Management A Strategic Planning Approach Victor P. Buell. McGraw-Hill, 1985.
Lua MLA (8ú heag.)BUELL, Victor P. Marketing Management A Strategic Planning Approach Victor P. Buell. McGraw-Hill, 1985.
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