United States. Department of Health, Education, and Welfare. (1920). Regulations for control of arsphenamine, neoarsphenamine, and sodium arsphenamine in D.C. and in interstate traffic; supplementary to Regulations for sale of viruses, serums, toxins, and analogous products, approved Feb. 12, 1919. GPO.
Chicago Style (17th ed.) CitationUnited States. Department of Health, Education, and Welfare. Regulations for Control of Arsphenamine, Neoarsphenamine, and Sodium Arsphenamine in D.C. and in Interstate Traffic; Supplementary to Regulations for Sale of Viruses, Serums, Toxins, and Analogous Products, Approved Feb. 12, 1919. [Washington]: GPO, 1920.
MLA (9th ed.) CitationUnited States. Department of Health, Education, and Welfare. Regulations for Control of Arsphenamine, Neoarsphenamine, and Sodium Arsphenamine in D.C. and in Interstate Traffic; Supplementary to Regulations for Sale of Viruses, Serums, Toxins, and Analogous Products, Approved Feb. 12, 1919. GPO, 1920.