TY  - BOOK
AU  - Hobson, E W
TI  - Treatise on Plane and Advanced Trigometry
U1  - 514.5 
PY  - 1957///
CY  - New York
PB  - Dover
KW  - General Stack
KW  - Plane trigonometry
KW  - Exponential functionsSeries, Infinite
KW  - Mathematics
ER  -