United States. Bureau of Agricultural Economics. (1938). Grades, requirements, and regulations of Secretary of Agriculture for carrying out provisions of Export Apple and Pear Act of June 10, 1933 (48 Stat. 123, 7 U. S. C., secs. 581-589). [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Agricultural Economics. Grades, Requirements, and Regulations of Secretary of Agriculture for Carrying Out Provisions of Export Apple and Pear Act of June 10, 1933 (48 Stat. 123, 7 U. S. C., Secs. 581-589). [Washington]: [s.n.], 1938.
MLA (9th ed.) CitationUnited States. Bureau of Agricultural Economics. Grades, Requirements, and Regulations of Secretary of Agriculture for Carrying Out Provisions of Export Apple and Pear Act of June 10, 1933 (48 Stat. 123, 7 U. S. C., Secs. 581-589). [s.n.], 1938.