PRIDE, W. M. (1989). Marketing - concepts and strategics - William M. Pride. Houghton Mifflin.
Lua i Stíl Chicago (17ú heag.)PRIDE, William M. Marketing - Concepts and Strategics - William M. Pride. Houghton Mifflin, 1989.
Lua MLA (8ú heag.)PRIDE, William M. Marketing - Concepts and Strategics - William M. Pride. Houghton Mifflin, 1989.
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