Borch, K. M. J. (1968). Risk and uncertainty.
Chicago Style aipamenaBorch, Karl; Mossin Jan. Risk and Uncertainty. Macmillan & Co. Ltd., London, 1968.
MLA aipamenaBorch, Karl; Mossin Jan. Risk and Uncertainty. 1968.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.