TY  - BOOK
AU  - Shackel [r G], 
TI  - Light
U1  - 535 
PY  - 1900///
CY  - Kottayam
PB  - NATIONAL BOOKSTALL
KW  - General Stack
KW  - Natural science and mathematics
KW  - PhysicsLight & infrared & ultraviolet phenomena
KW  - Generalia
ER  -