00612nam a2200337Ia 4500010000500000020001800005082002000023100002500043110000500068245004500073250000800118260002700126300002600153490000500179500000500184600000500189610000500194611000500199630000500204650000500209651000500214654000500219700000900224710000900233711000500242720000500247730000500252740000500257752000500262856000700267  a  a9780321816191  a512.7bSi587.FI  aSilverman, Joseph H.  a  aFriendly introduction to number theoryb  a4th  aBoston bPearsonc2011  aix, 409p. Bibl. Index  a  a  a  a  a  a  a  a  a  abc  abc  a  a  a  a  a  df