TY  - BOOK
AU  - Rai,B.R.
AU  - Singh,B.B.
TI  - Text book on plane trignometry: for B. A. & B.Sc students 
U1  - 514 
PY  - 1967///
CY  - Agra
PB  - Adarsh
KW  - Trigonometry
ER  -