Nachtnebel, H.P. ed.
Hydrological basis of ecologically sound management of soil and groundwater - Paris UNESCO/IHP 1993 - 71 p.
Ecologically sound management
556.3:654.195 N11H
Hydrological basis of ecologically sound management of soil and groundwater - Paris UNESCO/IHP 1993 - 71 p.
Ecologically sound management
556.3:654.195 N11H