APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.