TY  - BOOK
AU  - Sullivan Navin
TI  - Progress in the modern world
U1  - 823.01 
PY  - 1965///
CY  - New Delhi
PB  - George G. Harrap& Co. Ltd.
KW  - GeneralLight And Its Behaviour Some Useful Numbers, Reflection And Refraction Lenses, How Does Light Travel , Colour , General Physics Or The Study Of The Properties Of Matter
ER  -