American Society of Hospital Pharmacists. (1991). AHFS drug information: American hospital formulary service, 91. Board of Directors of the American Society of Hospital Pharmacists.
Chicago Style (17th ed.) CitationAmerican Society of Hospital Pharmacists. AHFS Drug Information: American Hospital Formulary Service, 91. Bethesda, MD: Board of Directors of the American Society of Hospital Pharmacists, 1991.
MLA (9th ed.) CitationAmerican Society of Hospital Pharmacists. AHFS Drug Information: American Hospital Formulary Service, 91. Board of Directors of the American Society of Hospital Pharmacists, 1991.
Warning: These citations may not always be 100% accurate.