TY  - BOOK
AU  - Hobson, E.W..
TI  - A Treatise on Plane Trigonometry
U1  - 513.1 
PY  - 1897///
CY  - Cambridge
PB  - At The University Press
KW  - Trigonometry
KW  - Plane Trigonometry
KW  - G-Mathematics
ER  -