APA aipamena

DRUCKER PETER F. (1985). INNOVATION AND ENTREPRENEURSHIP: PRACTICE AND PRINCIPLES. HARPER BUSINESS.

Chicago Style aipamena

DRUCKER PETER F. INNOVATION AND ENTREPRENEURSHIP: PRACTICE AND PRINCIPLES. NEW YORK: HARPER BUSINESS, 1985.

MLA aipamena

DRUCKER PETER F. INNOVATION AND ENTREPRENEURSHIP: PRACTICE AND PRINCIPLES. HARPER BUSINESS, 1985.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.