Feldstein, P. J. (1983). Health care economics (2nd ed.). Wiley.
Chicago Style aipamenaFeldstein, Paul J. Health Care Economics. 2nd ed. New York: Wiley, 1983.
MLA aipamenaFeldstein, Paul J. Health Care Economics. 2nd ed. Wiley, 1983.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.