TY  - BOOK
AU  - Stillwell John
TI  - Elements of number theory
T2  - Undergraduate Texts in Mathematics
SN  - 9788181283948
U1  - B13, P3 
PY  - 2003///
CY  - New York
PB  - Springer         
KW  - Economics
N1  - Bibliography: P 239-44
ER  -