Schwar, G.O. [et al.]
Soil and water conservation engineering - 2d ed. - New York Wiley 1965 - 683 p. - Fergusen Foundation Agricultural Engineering series .
626.8:631.4 / S4
Soil and water conservation engineering - 2d ed. - New York Wiley 1965 - 683 p. - Fergusen Foundation Agricultural Engineering series .
626.8:631.4 / S4