TY  - BOOK
AU  - Edser , Edwin
TI  - Light For Students
U1  - PL131 
PY  - 1946///
CY  - London
PB  - Macmillan And Co
KW  - Physics Light, Heat and Sound
N1  - PL means Physics Light, Heat and Sound Page No. 465-469 in A-Z Accession Register (Accession No. PL1-PL131)
ER  -