TY  - BOOK
AU  - Choubey,K.R.
AU  - Choubey,Ravikant
AU  - Choubey,Chandrakant
TI  - Trigonometry: Course in Mathematics for the IIT-JEE and Other Engineering Entrance Examinations 
SN  - 9781299486812
PY  - 2010///
PB  - Pearson
UR  - http://lib.myilibrary.com?id=479931
ER  -