TY  - BOOK
AU  - Bis.
TI  - Is 4497 :1977 indian standard specification for 16 mm portable sound andpicture cinematograph projectors
SN  - 0
U1  - 621.381 
PY  - 1994///
CY  - New Delhi
PB  - Bureau Of Indian Standard
KW  - Applied physics
ER  -