000 00280nam a2200109Ia 4500
008 160710s1957 xx 000 0 und d
100 _aGL=BR. DEPTT. OF SC. & INDUSTRIAL RESEARCH
245 _aHYDRAULIC RESEARCH 1956
260 _bH.M.S.O.
_c1957
300 _a54
942 _2ddc
_cB
999 _c19853
_d19853