00659cam a22002411 4500 agr47000066 DLC 20260227111005.0 940202s1941 ne a 000 0 dut c agr47000066 (OCoLC)29739253 U.S. Dept. of Agr. Library CU DLC premarc S633 .S28 56.6 Sch62 631.8 Schouten, A. F. Productieverhooging en bodemverbetering, door A.F. Schouten. Deventer, Æ. E. Kluwer [1941] 16 p. illus. 25 cm. Cover-title. Fertilizers and manures. 10580 10580