368512 Brown, E. B. (1945). Optical instruments. New York : Chemical Pub..
Cita Chicago (17th ed.)368512 Brown, Earle B. Optical Instruments. New York : Chemical Pub., 1945.
Cita MLA (9th ed.)368512 Brown, Earle B. Optical Instruments. New York : Chemical Pub., 1945.
Atenció: Aquestes cites poden no estar 100% correctes.