DRUCKER PETER F. (1999). MANAGEMENT CHALLENGES FOR THE 21ST CENTURY. BUTTERWORTH-HEINEMANN.
Chicago Style (17th ed.) CitationDRUCKER PETER F. MANAGEMENT CHALLENGES FOR THE 21ST CENTURY. OXFORD: BUTTERWORTH-HEINEMANN, 1999.
MLA (9th ed.) CitationDRUCKER PETER F. MANAGEMENT CHALLENGES FOR THE 21ST CENTURY. BUTTERWORTH-HEINEMANN, 1999.
Warning: These citations may not always be 100% accurate.