Investigation of the performance of the I. H. C. 4M-21 till planter for Kansas agriculture

Clark, Stanley Joe.2015-12-312015-12-311959http://hdl.handle.net/2097/25292Call number: LD2668 .T4 1959 C53Agricultural machinery--Testing.Investigation of the performance of the I. H. C. 4M-21 till planter for Kansas agricultureTextMasters theses