Kinsman, C. D. (Claude Dennison) 1889- creator Reynoldson, L. A. (Le Roy August) 1886- Reed, I. F. (Irvin Fay) 1903- text dcu Washington, D.C U.S. Dept. of Agriculture 1945 Rev. Nov. 1945. monographic eng

print

ii, 18 p. : ill. ; 23 cm. C.D. Kinsman and L.A. Reynoldson. Original edition, May 1919, by H.R. Tolley. Issued by Office of Farm Management. The present edition revised by I.F. Reed. Plowing S21 .A6 rev. no. 1045b (630.6173) 631.512 agr45000295 DLC 751013 20260227111003.0 agr45000295