000 00262nam a2200109Ia 4500
008 160710s1947 xx 000 0 und d
100 _aALLEN,J
245 _aSCALE MODELS IN HYDROLIC ENGINEERING
260 _bLONGMAN GREEN
_c1947
300 _a407
942 _2ddc
_cB
999 _c7293
_d7293