000 00284nam a2200121Ia 4500
008 190216s9999||||xx |||||||||||||| ||und||
100 _aJohn Cockcroft
245 0 _aOrdinary Level Physics
260 _bAllied Publications
_c1968
300 _a665p
650 _aPhysics
942 _cBK
999 _c32752
_d32752