TY  - BOOK
AU  - Simpson,Thomas Marshall
TI  - Plane trigonometry and logarithms,
AV  - QA533 .S5
U1  - 514.5 
PY  - 1930///]
CY  - Philadelphia
PB  - Winston
KW  - Plane trigonometry
KW  - Logarithms
N1  - Contains answers; With this is bound the author's Logarithmic and trigonometric tables.  Philadelphia, c1930
ER  -