TY  - BOOK
AU  - Colenson,J.W.
ED  - Asutosh Collection (National Library, India)
TI  - Plane trigonometry: with the use of logarithms 
U1  - 514.5 
PY  - 1874///
CY  - London
PB  - Longman, Green
KW  - Plane trigonometry
N1  - Part I to Part II
ER  -