00336nam a2200133Ia 4500020001800000082001900018100001900037245003900056260003600095300002700131490003400158500000500192700000500197  a9780387953359  a512.7bR813.NT  aRosen, Michael  aNumber theory in function fieldsb  aNew YorkbSpringer-Verlagc2002  axii, 358p. Bibl. Index  aGraduate texts in mathematics  a  a