000 00325nam a2200133Ia 4500
008 210901s1968 xx 000 0 eng d
082 _a516.24 KOC
100 _aKochhar, M.l.
245 0 _aEleements of trignometry
260 _aDelhi
_bUniversal Publishers
_c1968
300 _a50
650 _aMathematics
942 _2ddc
_cBK
999 _c1478
_d1478