000 00273nam a2200121Ia 4500
001 78300
008 240126s9999||||xx |||||||||||||| ||und||
245 0 _aCE2-Tetrahedron: showinh axis
260 _aHyderabad
260 _bCreative Educators
260 _c1990
942 _cBK
999 _c78300
_d78300