00744cam a2200229 a 4500 987915 BD-DhUL 20150113154315.0 881117r19491945uk a 000 0 eng d 987915 AIPO eng AIPO BD-DhUL 631.41 HOC Hopkins, Donald P. Chemicals, humus and the soil : a simple presentation of contemporary knowledge and opinions about fertilizers, manures and soil fertility / Donald P. Hopkins. London : Faber and Faber, 1945. 278 p. : ill. ; 22 cm. Includes bibliographical references and index. Soil science. Humus. ddc BK ANL 631.45 HOP 30355 30355 0 0 ddc 0 631_410000000000000_HOC 0 NFIC 57469 DUSL DUSL GEN 1953-03-19 Purchased 631.41 HOC 60430 2015-01-13 2015-01-13 BK