000 00368pam a2200145a 44500
008 160408b1981 xxu||||| |||| 00| 0 eng d
010 _a81014551
020 _a0 387 90593 6
082 _a517.7076
_bG989U
100 _aGuy, Richard K.
245 1 _aUNSOLVED PROBLEMS IN NUMBER THEORY
260 _a
_bSpringer-Verlag
_c1981
964 _gCIRC
997 _aA81649 C
999 _c277699
_d277699