000 00585nam a2200217Ia 4500
020 _a0387942890
082 _a512.7
_bG986.UP
100 _aGuy, Richard K.
245 _aUnsolved problems in number theory
_b
260 _aNew York
_bSpringer-Verlag
_c1981
300 _axviii, 161p. Index
490 _aProblem books in Mathematics
500 _a"Lib. also has 2nd edn. (1994)"
500 _a
690 _a
700 _a
904 _aUnsolved Problems in Intuitive Mathematics; v.1
964 _a
_b
_c
_d
_e
_f
_g
965 _a(Problem books in Mathematics)
921 _a9442
999 _c9442
_d9442