000 00286nam a2200109Ia 4500
008 231219s1981 xx 000 0 und d
041 _aeng
100 _aKULBIR SINGH SIDDHU
245 _aTHE TEACHING OF MATHANATION
260 _aDELHI
_bSTERING PVT LTD NEW DELHI
_c1981
300 _a382p
999 _c344075
_d344075