Singh, Gurmel. Manual of Soil and Water Conservation Practices / Gurmel Singh ...[et al.]. - Bombay : Oxford & IBH, c 1991. - viii, 385 p. : ill. ; 23 cm. 61 61 ISBN: 81-204-0552-8 Subjects--Topical Terms: Techniques, equipment & materials. Dewey Class. No.: 631.45 / G964m