TY  - BOOK
AU  - Pettofgrezzo, Anthony J
TI  - Number Systems:Structure and Properties
U1  - 512.81 
PY  - 1969///
CY  - London
PB  - Scott, Foresman and Company
KW  - General Stack
KW  - Numbers, Real
KW  - Arithmetic--FoundationsMathematics
KW  - Mathematics
ER  -