Drucker Peter Ferdinand. (1993). Management: Tasks, responsibilities, practices. HarperBusiness.
Chicago Style (17th ed.) CitationDrucker Peter Ferdinand. Management: Tasks, Responsibilities, Practices. New York: HarperBusiness, 1993.
MLA (8th ed.) CitationDrucker Peter Ferdinand. Management: Tasks, Responsibilities, Practices. HarperBusiness, 1993.
Warning: These citations may not always be 100% accurate.