TY  - BOOK
AU  - Edser, Edwin
TI  - LIGHT FOR STUDENTS
U1  - 535 
PY  - 1960///
CY  - London
PB  - Macmillan And Co., Limeted
KW  - Optics
N1  - Answers To Questions : P. 573-574; First Edition 1902; Reprinted, With Corrections, 1903, 1904, 1907
ER  -