TY  - BOOK
AU  - Dudley,Underwood
TI  - Elementary number theory
T2  - A Series of books in mathematics
SN  - 0716704382
AV  - QA241 .D79
U1  - 512/.81 
PY  - 1969///]
CY  - San Francisco
PB  - W. H. Freeman
KW  - Number theory
N1  - Bibliography: p. [187]-189
ER  -