United States. Federal Supply Service. (1930). Supplement to General schedule of supplies for fiscal year 1931, class 11: Feed, forage, and seed, for period from Nov. 1, 1930 to Feb. 28, 1931. GPO.
Chicago Style (17th ed.) CitationUnited States. Federal Supply Service. Supplement to General Schedule of Supplies for Fiscal Year 1931, Class 11: Feed, Forage, and Seed, for Period from Nov. 1, 1930 to Feb. 28, 1931. [Washington]: GPO, 1930.
MLA (9th ed.) CitationUnited States. Federal Supply Service. Supplement to General Schedule of Supplies for Fiscal Year 1931, Class 11: Feed, Forage, and Seed, for Period from Nov. 1, 1930 to Feb. 28, 1931. GPO, 1930.
Warning: These citations may not always be 100% accurate.