TY  - BOOK
AU  - B K Mathur
AU  - MATHUR (B K)
AU  - PANDYA (T P)
TI  - Principles of Optics
U1  - 534/163 23
PY  - 1974///
CY  - Kanpur
PB  - Gopal Printing Press
KW  - physics
KW  - optics
ER  -