Pereira, Luis S. Water and the environment innovation issues in irrigation and drainage /ed. by Luis S. Pereira and John W. Gowing - London : E & FN Spon, 1998. - 470 p. : ilus. ; gráfs. ISBN: 0419237100 LCCN: 85567 Subjects--Topical Terms: Drenaje--Congresos.Ingeniería hidráulica.Irrigación. Dewey Class. No.: 628.1 / P5