000 00296nam a2200121Ia 4500
008 220201s1961 xx 000 0 eng d
041 _aENG
100 _aFREY, P R
245 0 _aCHEMISTRY PROBLEMS
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1961
300 _a228
942 _2ddc
999 _c39405
_d39405