000 00257nam a22001097a 4500
082 _a532 NEK'P
100 _aKOCHERGIN, A,FABRIKANT, N,NEKRASOV, B
_978625
245 _aPROBLEMS IN HYDRAULICS
260 _aMOSCOW
_bMIR
_c1974
300 _a192P
942 _cBK
999 _c583739
_d583739