000 nam a22 7a 4500
999 _c194339
_d194339
020 _a8123711158
040 _cCUS
082 _a800.0833
_bNAR/F
100 _aNarayan, Badri
245 _aFind the half-circles/
_cBadri Narayan
260 _aNew Delhi:
_bNational Book Trust,
_c1989.
300 _a16 p.
650 _aKreis
650 _aHalbkreis
942 _cCH32