Institution, 8. B. S. Specification for picture sizes and location of rear windows of film cameras.
Cita Chicago (17th ed.)Institution, 8096 British Standards. Specification for Picture Sizes and Location of Rear Windows of Film Cameras.
Cita MLA (9th ed.)Institution, 8096 British Standards. Specification for Picture Sizes and Location of Rear Windows of Film Cameras.
Atenció: Aquestes cites poden no estar 100% correctes.