TY  - BOOK
AU  - Holmyard, E J
TI  - Heat, Light and Sound for Beginers
U1  - 535 
PY  - 1936///
CY  - Kottayam
PB  - NATIONAL BOOKSTALL
KW  - General Stack
KW  - Natural science and mathematics
KW  - PhysicsLight & infrared & ultraviolet phenomena
KW  - Generalia
ER  -