DRUCKER PETER F. (2000). EFFECTIVE EXECUTIVE. BUTTERWORTH-HEINEMANN.
Chicago Style (17th ed.) CitationDRUCKER PETER F. EFFECTIVE EXECUTIVE. OXFORD: BUTTERWORTH-HEINEMANN, 2000.
MLA引文DRUCKER PETER F. EFFECTIVE EXECUTIVE. BUTTERWORTH-HEINEMANN, 2000.
警告:這些引文格式不一定是100%准確.