00889nam--2200313---450-99000324807020331620090519141123.0000324807USA01000324807(ALEPH)000324807USA0100032480720090519d1970----km-y0itay50------baengUS||||||||001yyBibliography of non-euclidean geometryD.M.Y. SommervilleNew YorkChelsea Publ. Co.1970XII, 410 p.20 cmGeometria non euclidea516.9SOMMERVILLE,D.M.Y.347323ITsalbcISBD990003248070203316516.9 SOm4490/CBS516.900221158BKSCIRSIAV69020090519USA011411Bibliography of non-euclidean geometry383205UNISA