DRUCKER PETER F. (1985). INNOVATION AND ENTREPRENEURSHIP PRACTICE AND PRINCIPLES. HEINEMAN OXFORD & IBM PUB CO.PVT LTD.
Cita Chicago (17th ed.)DRUCKER PETER F. INNOVATION AND ENTREPRENEURSHIP PRACTICE AND PRINCIPLES. LONDON: HEINEMAN OXFORD & IBM PUB CO.PVT LTD, 1985.
Cita MLA (9th ed.)DRUCKER PETER F. INNOVATION AND ENTREPRENEURSHIP PRACTICE AND PRINCIPLES. HEINEMAN OXFORD & IBM PUB CO.PVT LTD, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.