United States. Bureau of Agricultural Engineering & Ashby, W. (1932). Progress report on draft of plows used for corn borer control. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Bureau of Agricultural Engineering and Wallace Ashby. Progress Report on Draft of Plows Used for Corn Borer Control. [Place of publication not identified]: [publisher not identified], 1932.
MLA (9th ed.) CitationUnited States. Bureau of Agricultural Engineering and Wallace Ashby. Progress Report on Draft of Plows Used for Corn Borer Control. [publisher not identified], 1932.
Warning: These citations may not always be 100% accurate.