Shuman, J. B. (1972). The Kondratieff wave. New York: World Publishing.
Trích dẫn kiểu ChicagoShuman, James B. The Kondratieff Wave. New York: World Publishing, 1972.
Deismireacht MLAShuman, James B. The Kondratieff Wave. New York: World Publishing, 1972.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.