000 00520 a2200253 4500
001 8158
020 _a0-85298-447-20
041 _aeng
080 _a621.311.2 Pug
245 _aHydraulic age : public power supplies before electricity
250 _a
260 _aLondon
260 _bMech. Engg. Pub.,
260 _c1980
300 _aviii,176 p.
300 _c 20 cm
490 _a
100 _aPugh, B.
700 _a
650 _a
650 _aHydroelectric power-plant
942 _cBK
942 _2UDC
999 _c9881
_d9881