00894nam--2200325---450-99000324806020331620090519140802.0000324806USA01000324806(ALEPH)000324806USA0100032480620090519d1979----km-y0itay50------baengUSa---||||001yyCirclesA mathematical viewD. PedoeNew YorkDover Publications, Inc.copyr. 1979VIII, 87 p.ill.22 cmDover Books Explaining ScienceGeometria non euclidea516.9PEDOE,D.47765ITsalbcISBD990003248060203316516.9 PED7818/CBS516.900221163BKSCIRSIAV69020090519USA011408Circles380102UNISA