van Trinh, Mai Soil erosion and nitrogen leaching in Northern Vietnam : experime ntation and modelling / Mai Van Trinh. - Wageningen : Wageningen University, 2007. - 182 p. : ill. ; 24 cm. Thesis (PhD Production Ecology) - Wageningen University, 2007. Includes bibliographical references (p. 147-168). ISBN: 908504605X Subjects--Topical Terms: Soil erosionNitrogen-- Environmental aspects-- Vietnam, Northern. Dewey Class. No.: 631.6