TY  - BOOK
AU  - Twyman, F.
TI  - Prism and lens making: a textbook for optical glass workers
PY  - 1942///
CY  - London
PB  - Adam Hilger
KW  - Astronomy and astrophysics thesaurus
KW  - Lens design
KW  - Lenses
KW  - Prisms
ER  -