DuBRIN, A. J. (1985). Contemporary applied management. Businnes Pub.
Lua i Stíl Chicago (17ú heag.)DuBRIN, Andrew J. Contemporary Applied Management. Texas: Businnes Pub, 1985.
Lua MLA (9ú heag.)DuBRIN, Andrew J. Contemporary Applied Management. Businnes Pub, 1985.
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