Samuelson, P. A. (1992). Economics. New York: McGraw-Hill.
Chicago Style aipamenaSamuelson, Paul Anthony. Economics. New York: McGraw-Hill, 1992.
MLA aipamenaSamuelson, Paul Anthony. Economics. New York: McGraw-Hill, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.