000 00368nam a2200145Ia 4500
008 130223s9999 xx 000 0 und d
100 _aVisser, W.C.
245 _aSize and shape of sub-divisions in drainage areas
260 _aWageningen
260 _c1960
300 _a1-4 p.
440 _aInstitute for Land and Water M
901 _pS2649
942 _cB
_2udc
999 _c133394
_d133394