Schwab, Glenn O Soil and water conservation engineering = Đất và bảo tồn nước kỹ thuật Glenn O. Schwab, Delmar D.Fangmeier, William J.Elliot - 4e. - American Export of this book from the Philippines 1997 - 507p. 21cm. References: P. 493 Subjects--Topical Terms: Soil and water Subjects--Index Terms: Soil Water Water erosion Precipitation Pumps Dewey Class. No.: 627 / S