000 00264nam a2200109Ia 4500
008 160930s9999 xx 000 0 und d
100 _aKrylov, N.
245 _aDescriptive Geometry
260 _aMoscow
_bMir Publications
_c1968
300 _a383p.;22cm.
942 _cDB
999 _c8667
_d8667