000 00333nam a2200145Ia 4500
020 _a9780356132259
082 _b3109
_a000
100 _a"John and Janet Clemence"
245 0 _aElectricity
260 _bLondon; Macdonald
_c1987
300 _a31
944 _cBK
999 _c512477
_d512477