Courtney, F.M. Trudgill, A.T. The soil : an introduction to soil study /by F.M Courtney, A.T. Trudgill - 2nd ed. - London Hodder & Stoughton 1992 - iv, 123 p. ISBN: 0713109955 Subjects--Topical Terms: Soil Dewey Class. No.: 631.4 / COU