000 00294nam a2200121Ia 4500
001 73086
008 240126s9999||||xx |||||||||||||| ||und||
245 0 _aModern mathematics No. 4, types of sets
260 _aDelhi
260 _bAll India Educational Supply Co.
260 _c1987
942 _cBK
999 _c73086
_d73086