000 003200000a22001090004500
245 _aA guide to electric space and water heating for small commercial premises
110 _aElectricity Council, London GB
260 _aLondon
_bElectricity Council
_c1979
080 _a696.6:697.3
_bE4
041 _aEN
942 _cBK
999 _c109789
_d109789