United States. Federal Horticultural Board. (1921). Regulations governing importation of potatoes into U.S. under provisions of order of Secretary of Agriculture issued Dec. 22, 1913. GPO.
Chicago Style (17th ed.) CitationUnited States. Federal Horticultural Board. Regulations Governing Importation of Potatoes into U.S. Under Provisions of Order of Secretary of Agriculture Issued Dec. 22, 1913. [Washington]: GPO, 1921.
MLA (9th ed.) CitationUnited States. Federal Horticultural Board. Regulations Governing Importation of Potatoes into U.S. Under Provisions of Order of Secretary of Agriculture Issued Dec. 22, 1913. GPO, 1921.
Warning: These citations may not always be 100% accurate.