TY  - BOOK
AU  - Johnston,C.L.
AU  - Willis,Alden T.
TI  - Developmental mathematics 
SN  - 0534010989 
AV  - QA152.2 J51
PY  - 1982///
CY  - Belmont, Calif.
PB  - Wadsworth Pub. Co.
KW  -  
KW  - Algebra
N1  - Includes index
ER  -