TY  - BOOK
AU  - AROBINDA NUG
TI  - GEOMETRICAL OPTICS
U1  - 535/NAG/JAM 
PY  - 1977///
CY  - KOLKATA
PB  - WEST BENGAL STATE BOOK BOARD
KW  - LIGHT & INFRARED & ULTRAVIOLET PHENOMENA
KW  - PHYSICS
ER  -