TY  - BOOK
AU  - Gupt, Y K
TI  - Pravastha Niyam Evam Unke Prayog
PY  - 1972///
PB  - Rajasthan Hindi Granth Academi, Jaipur
KW  - Physics
KW  - Physics:Pravastha:Niyam:Prayog
ER  -