Ritzema, H. P. Drainage principles and applications - 2 ed. rev. - Wageningen : International Institute for Land Reclamation and Improvement, 1994 - 1125 p. - ILRI publication ; 16 . - ILRI publication ; 16 . LCCN: 40180 Subjects--Topical Terms: Drenaje. Dewey Class. No.: 631.6 / R58 1994