United States. Bureau of Agricultural Economics. (1929). Summary of standard tobacco grades for U.S. type 21. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Bureau of Agricultural Economics. Summary of Standard Tobacco Grades for U.S. Type 21. Washington: [publisher not identified], 1929.
MLA (9th ed.) CitationUnited States. Bureau of Agricultural Economics. Summary of Standard Tobacco Grades for U.S. Type 21. [publisher not identified], 1929.
Warning: These citations may not always be 100% accurate.