"schwab, glenn o. "
elementary soil and water enineering: / glenn.o. schwab - 3 ed. - usa : john wiley 1985. - "vii, 356p.; 23 cm."
0-471-62646-5
soil conservation--hydraulic engineering
631. 4 sch
elementary soil and water enineering: / glenn.o. schwab - 3 ed. - usa : john wiley 1985. - "vii, 356p.; 23 cm."
0-471-62646-5
soil conservation--hydraulic engineering
631. 4 sch