TY  - BOOK
AU  - Hobson , E.W..
AU  - Jessop, C.M..
TI  - An Elementary Treatise on Plane Trigonometry
U1  - 514.5 
PY  - 1913///
CY  - Cambridge
PB  - At The University Press
KW  - Trigonometry
KW  - Plane Trigonometry
KW  - G-Mathematics
ER  -