BS 1772 : 1972 : Specification for sizes of black-and-white photographic sheet film for general, professional and industrial use
- London B.S.I. 1972
- 6p.
STD492
BS 1772 : 1972
771.531.32.068.065 /
STD492
BS 1772 : 1972
771.531.32.068.065 /