APA ציטוט

Shuman, J. B. (1972). The Kondratieff wave. New York: World Publishing.

Trích dẫn kiểu Chicago

Shuman, James B. The Kondratieff Wave. New York: World Publishing, 1972.

ציטוט MLA

Shuman, James B. The Kondratieff Wave. New York: World Publishing, 1972.