Chemical, humus and the soil; a simple presentation of contemporary knowledge and opinions about fertilizers, manures and soil fertility.
Hopkins, Donald P.
Chemical, humus and the soil; a simple presentation of contemporary knowledge and opinions about fertilizers, manures and soil fertility. - London Faber and Faber 1956 - 288p.
Donald P. Hopkins
631.8 417.2 J6
Chemical, humus and the soil; a simple presentation of contemporary knowledge and opinions about fertilizers, manures and soil fertility. - London Faber and Faber 1956 - 288p.
Donald P. Hopkins
631.8 417.2 J6


