000 00267nam a2200109Ia 4500
008 220201s1973 xx 000 0 eng d
100 _aT T T I
245 0 _aDETAILED CONTENTS AND TEACHER'S GUIDE
260 _aCHANDIGHAR
_bT T T I
_c1973
300 _a21
942 _2ddc
999 _c89177
_d89177