Drummond, M. F. (1980). Principles of economic appraisal in health care.
Chicago Style aipamenaDrummond, M F. Principles of Economic Appraisal in Health Care. Oxford, OUP, 1980.
MLA aipamenaDrummond, M F. Principles of Economic Appraisal in Health Care. 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.