Results of boys' demonstration work in corn clubs in 1910-1911
Contributors: Knapp, Bradford, 1870-; Knapp, Seaman Asahel, 1833-1911; Martin, O. B. (Oscar Baker), 1870-1935
Series: (B. P. I.--647; B. P. I.--741)
Publisher: Govt. print. off.]
Published: 1911
Place of publication: [Washington
Language: eng
Subjects: Corn; Agriculture; Societies
Notes: 1910, signed: S. A. Knapp ... O. B. Martin; 1911: Bradford Knapp ... O. B. Martin.