000 00335nam a2200145Ia 4500
020 _a9780174333265
082 _b21
_a420
100 _a"Etherton Alan"
245 0 _aGeneral Certificate
260 _bNelson Thornes
_aLondon
_c1983
300 _a374
944 _cBK
999 _c392751
_d392751