000 00313nam a2200121 4500
008 160616s 000 0
245 _aNon euclidean hyperbolic plane its structure and consistency
100 _aKelly, Paul
100 _aMathews, Gordon
500 _aB6 M12
942 _cBK
_2BK2707
080 _a514 KEL
999 _c2707
_d2707