Institution, 8. B. S. Specification for picture sizes and location of rear windows of film cameras.
Lua i Stíl Chicago (17ú heag.)Institution, 8096 British Standards. Specification for Picture Sizes and Location of Rear Windows of Film Cameras.
Lua MLA (9ú heag.)Institution, 8096 British Standards. Specification for Picture Sizes and Location of Rear Windows of Film Cameras.
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