Não informado. (1971). FDA drug bulletin. Food and Drug Administration, Department. of Health, Education and Welfare.
Chicago-Zitierstil (17. Ausg.)Não informado. FDA Drug Bulletin. Rockville, Md: Food and Drug Administration, Department. of Health, Education and Welfare, 1971.
MLA-Zitierstil (8. Ausg.)Não informado. FDA Drug Bulletin. Food and Drug Administration, Department. of Health, Education and Welfare, 1971.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.