The demonstration work
Subtitle: Dr. Seaman A. Knapp's contribution to civilization
By: by O. B. Martin.
Contributors: Epsilon Sigma Phi. Alpha zeta chapter, Texas.
Edition: 3d ed. Published by Alpha zeta chapter, Texas, of the Epsilon sigma phi.
Publisher: The Naylor company
Published: 1941
Place of publication: San Antonio, Tex
Language: eng
Number of pages: 257
Subjects: Knapp, Seaman Asahel, 1833-1911.; Agricultural extension work.