000 00294 a2200121 4500
080 _a551.437(063)
_bI 61 S
245 1 _aResults of research on representative and experimental basins
260 _bIASH - UNESCO
_c1970
650 _aBasins
100 _a
_d
300 _a599 p.
901 _a126363
999 _c68539
_d68539