TY  - BOOK
AU  - Hershey, Fritz Lynn
TI  - Optics and focus for camera assistants
SN  - 9780240802008
U1  - 778.53 
PY  - 1996///
CY  - United States of America
PB  - Focal Press
KW  - Photographic optic, Photographic lenses
ER  -