000 00264nam a2200121Ia 4500
999 _c10811
_d10811
020 _a0408012501
100 _aDryden I G C
245 _aEfficient use of Energy
250 _a2
260 _c1982
_bBUTTERWORTH SCIENTIFIC
_aUK
300 _axiii+602
942 _cREF