TY  - BOOK
AU  - Ajmer Singh
TI  - Vishav di nuhar; Ainstain da apekhekta sidhant
U1  - PJ 530.11 A27V 
PY  - 1966///
CY  - Patiala
PB  - Punjabi University
KW  - RELATIVITY (PHYSICS)
ER  -