APA ציטוט

Drucker, P. F. (1965). Landmarks of tomorrow. New York: Harper & Row Publishers.

Trích dẫn kiểu Chicago

Drucker, Peter Ferdinand. Landmarks of Tomorrow. New York: Harper & Row Publishers, 1965.

ציטוט MLA

Drucker, Peter Ferdinand. Landmarks of Tomorrow. New York: Harper & Row Publishers, 1965.