TY - BOOK AU - Drucker,Peter F. TI - Innovation and entrepreneurship: practice and principles SN - 0750643889 U1 - 658.421 21 PY - 1999/// CY - Oxford PB - Butterworth-Heinemann KW - Management KW - Enterpreneurship N1 - Originally published 1985; Includes bibliographical references (p248-249) and index ER -