The Soil an introduction to the scientific study of the growthof crops
Hall,A.D The Soil : an introduction to the scientific study of the growthof crops / by A.D.Hall; G.W.Robinson. - New and rev. 5th edition. - - London : John Murray, 1945 xiv, 322 p. : ill.,figures
Includes index
* apparatus,equipments, materials - Soil Science - * * Agriculture - * Specific techniques * Robinson, G.W. *