Não informado. (1971). FDA drug bulletin. Food and Drug Administration, Department. of Health, Education and Welfare.
Chicago-referens (17:e uppl.)Não informado. FDA Drug Bulletin. Rockville, Md: Food and Drug Administration, Department. of Health, Education and Welfare, 1971.
MLA-referens (8:e uppl.)Não informado. FDA Drug Bulletin. Food and Drug Administration, Department. of Health, Education and Welfare, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.