Agriculture in the central part of the semiarid portion of the great plains
J.A. Warren
Agriculture in the central part of the semiarid portion of the great plains - Washington United States Department of Agriculture 1911 - 43p. - Bureau of plant industry, No. .
Agriculture in the central part of the semiarid portion of the great plains - Washington United States Department of Agriculture 1911 - 43p. - Bureau of plant industry, No. .