TY  - GEN
AU  - Dubey,S.K.D.
AU  - Pandey, D.S.
AU  - Dwivedi, B.D.
TI  - A text book of spherical trigonometry and spherical astronomy: according to new syllabus of U.G.C 
SN  - 9788190454612
U1  - 516.244 
PY  - 2007///
CY  - Delhi
PB  - Swastik Publishers & Distributors
ER  -