TY  - BOOK
AU  - O'daffer, Phares G.
AU  - Clemens, Stanley R. 
AU  - Charles, Randall I. 
TI  - Pre-algebra: a transition to algebra 
SN  - 0201285207
U1  - FOR 512 Od1p 1992 
PY  - 1992///
CY  - USA
PB  - Addison-Wesley Publishing Company
KW  - Algebra
N1  - Includes index.
ER  -