TY  - BOOK
AU  - Subrahmanyam, N.
AU  - Brij Lal
TI  - Principles of physics
U1  - 530 
PY  - 1979///
CY  - New Delhi
PB  - S. Chand and Company
KW  - Physics
KW  - Gravity
N1  - (for intermediate, higher secondary, all India higher secondary, pre-university, pre-medical, Indian school certificate, AMIEE, diploma in engineering and medical college's entrance examinations)
ER  -