TY  - BOOK
AU  - Houstoun, Robert Alexander
TI  - A TREATISE ON LIGHT
U1  - 535 
PY  - 1952///
CY  - London
PB  - Longmans, Green And Co.
KW  - Light
N1  - First Edition, September, 1915...Seventh Edition, July, 1938
ER  -