TY  - BOOK
AU  - Raja Rajendralal Mitra 
AU  - Cowell, E B  
TI  - Twelve principal upanishads
PY  - 1978///.
CY  - Delhi : 
PB  - Nag Publishers, 
KW  - Upanishad
N1  - Vol 3; Vol 3
ER  -