000 00268nam a2200109Ia 4500
008 190829s9999||||xx |||||||||||||| ||und||
100 _aHoustoun, R.A
245 0 _aIntermediate Light
260 _bLongmans, Green And Co.
_aLondon
_c1930
650 _aPhysics
942 _cBK
999 _c7626
_d7626