368512 Brown, E. B. (1945). Optical instruments. New York : Chemical Pub..
Lua i Stíl Chicago (17ú heag.)368512 Brown, Earle B. Optical Instruments. New York : Chemical Pub., 1945.
Lua MLA (9ú heag.)368512 Brown, Earle B. Optical Instruments. New York : Chemical Pub., 1945.
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