APA aipamena

Viksnins, G. J. (1987). Economic systems in historical perspective. Kendal/Hunt Publishing Co.

Chicago Style aipamena

Viksnins, George J. Economic Systems in Historical Perspective. Kendal/Hunt Publishing Co, 1987.

MLA aipamena

Viksnins, George J. Economic Systems in Historical Perspective. Kendal/Hunt Publishing Co, 1987.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.