000			00377 a2200145 4500
999			_c38439 _d39986
003			ISURa
008			160208b xxu||||| |||| 00| 0 eng d
041			_aEnglish
082			_a516.16 _bMAT
245			_aMathematics _bcoordinate geometry conics
260			_c1980 _aNugegoda _bOpen University
300			_bill. _c28 cm. _a28 p.
650			_aMathematics _978923
942			_cLN _2ddc