Davidson Donald A Soils and land use planning - New York Longman U S A 1980 - xii,129p. cm. - Topics in applied geography . Bibliography P 117-25; Appendix P 107-16 ISBN: 0582489857 Source: General Book Subjects--Topical Terms: GegographyAgricultural Geography Dewey Class. No.: U672(J:1), M0/TD