000 00269nam a2200121Ia 4500
100 _aBallard, Philip Boswood
942 _cBK
654 _a
245 _aNew examiner
260 _aLondon
_bUniversity of London Press
_c1948
082 _a371.271
300 _c18cm
_a269
999 _c361185
_d361185
041 _aeng