Fernandez, R. (1983). Excess Profits. Addison-Wesly.
Chicago Style aipamenaFernandez, Ronald. Excess Profits. Addison-Wesly, 1983.
MLA aipamenaFernandez, Ronald. Excess Profits. Addison-Wesly, 1983.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.