TY  - BOOK
AU  - School mathematics study group
TI  - First course in algebra : unit 9
U1  - B2, K01.1;8          K01.1           K01.1;3             K02.2;2            K01.2          K01.1;2          K01.1;5            K02.1            K02.1;1             K02.1;2            K02.1;3 
PY  - 1960///
KW  - Algebra
ER  -