Elementary soil and water engineering /
Glenn, O Schwab.
Elementary soil and water engineering / Glenn O. Schwab, ...[et al]. - 2nd ed. - New York : Wiley, 1971. - vii, 316 p. : ill., maps.
0471765260
Soil conservation.
Hydraulic engineering.
Water conservation
Elementary soil and water engineering / Glenn O. Schwab, ...[et al]. - 2nd ed. - New York : Wiley, 1971. - vii, 316 p. : ill., maps.
0471765260
Soil conservation.
Hydraulic engineering.
Water conservation