Drucker, Peter F.
Innovation and entrepreneurship : practice and principles / Peter F. Drucker. - Butterworth/Heinemann 1985.
4342
Entrepreneurship.
HB615 / Dru.
Innovation and entrepreneurship : practice and principles / Peter F. Drucker. - Butterworth/Heinemann 1985.
4342
Entrepreneurship.
HB615 / Dru.