Παραπομπή APA

Drummond, M. F. (1980). Principles of economic appraisal in health care.

Παραπομπή Chicago Style

Drummond, M F. Principles of Economic Appraisal in Health Care. Oxford, OUP, 1980.

Παραπομπή MLA

Drummond, M F. Principles of Economic Appraisal in Health Care. 1980.