Smedema, Lambert K. Modern land drainage : planning, design and management of agricultural drainage systems / Lambert K. Smedema,Willem F. Vlotman, David W. Rycroft. - Leiden ; London : A.A. Balkema, 2004. - x, 446 p. : ill. ; 25 cm. Fakulti Agro-Industri dan Sumber Asli ISBN: 9058095541 9789058095541 Subjects--Topical Terms: Drainage.Irrigation engineering.