TY  - BOOK
AU  - McSwain,E T [...et al]
TI  - Mathematics 7
T2  - Laidlaw mathematics series
U1  - 510.071273 20
PY  - 1963///
CY  - River Forest, Ill.
PB  - Laidlaw Bros., 
KW  - Mathematics
KW  - Study and teaching
N1  - Includes index
ER  -