00918cam a22002771 4500 agr51000327 DLC 20260227111015.0 831118s1951 dcuab f000 0 eng c agr51000327 Us.S. Dept. of Agr. Libr. DLC DLC SB198 .M45 S21 .A48 no. 868 1 Ag84C no.868 Marx, Robert E. Hay harvesting methods and costs, by Robert E. Marx and James W. Birkhead. Washington, [U. S. Govt. Print. Off.] 1951. 122 p. : illus., map ; 24 cm. U. S. Dept. of Agriculture. Circular no. 868 Cover title. Hay Harvesting. Hay Harvesting Cost. Harvesting. Birkhead, James W. (James Wesley), 1916- Circular (United States. Department of Agriculture) ; no. 868. 11341 11341