TY  - BOOK
AU  - Engen, Van Henry
AU  - Hartung L. Maurice
ED  - Trimble C. Harold
TI  - Seeing Through  Mathematics
AV  - QA39.2 .S43 1963 bk 2
PY  - 1963///
CY  - Chicago
PB  - Scott, Foresman and Company
KW  - Mathematics
N1  - includes index
ER  -