50 Years of hydro(geo)logical mapping activities /
Gilbrich, W.H.
50 Years of hydro(geo)logical mapping activities / W.H. Gilbrich [and] W.F. Struckmeier - Paris : UNESCO, 2014. - 79 p.: ill.
includes annex
Hydrology
50 Years of hydro(geo)logical mapping activities / W.H. Gilbrich [and] W.F. Struckmeier - Paris : UNESCO, 2014. - 79 p.: ill.
includes annex
Hydrology