APA (7. basım) Alıntı

Drucker, P. F. (1985). Innovation and entrepreneurship: Practice and principles. Harper & Row.

Chicago Style (17. basım) Atıf

Drucker, Peter Ferdinand. Innovation and Entrepreneurship: Practice and Principles. New York: Harper & Row, 1985.

MLA (9th ed.) Atıf

Drucker, Peter Ferdinand. Innovation and Entrepreneurship: Practice and Principles. Harper & Row, 1985.