Caves, R. E. (1990). World trade and payments: An introduction. New York: Harper Collins.
Chicago Style aipamenaCaves, Richard E. World Trade and Payments: An Introduction. New York: Harper Collins, 1990.
MLA aipamenaCaves, Richard E. World Trade and Payments: An Introduction. New York: Harper Collins, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.