TY  - BOOK
AU  - Das Asha
AU  -  Gupta Pooja
TI  - Grah vigiyan: Patthya pushtak aur prayogatmak pushtak
SN  - 81-7063-189-0
PY  - 1995///
CY  - New Delhi, India
PB  - Arya Book Depot
ER  -