000 00335nam a2200145Ia 4500
020 _a9780356132259
082 _b1277
_a629.23
100 _a"John and Janet Clemence"
245 0 _aElectricity
260 _bLondon; Macdonald
_c1987
300 _a31
944 _cR
999 _c587938
_d587938