PLSEK PAUL E. (2000). CREATIVITY, INNOVATION AND QUALITY. PRENTICE -HALL INTERNATIONAL, INC.
Lua i Stíl Chicago (17ú heag.)PLSEK PAUL E. CREATIVITY, INNOVATION AND QUALITY. NEW DELHI: PRENTICE -HALL INTERNATIONAL, INC, 2000.
Lua MLA (9ú heag.)PLSEK PAUL E. CREATIVITY, INNOVATION AND QUALITY. PRENTICE -HALL INTERNATIONAL, INC, 2000.
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