PLUNKETT, W. R. (1989). Introduction To Management Warren R. Plunkett. PWS Kent.
Lua i Stíl Chicago (17ú heag.)PLUNKETT, Warren R. Introduction To Management Warren R. Plunkett. PWS Kent, 1989.
Lua MLA (8ú heag.)PLUNKETT, Warren R. Introduction To Management Warren R. Plunkett. PWS Kent, 1989.
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