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Optical Society of America. Meeting (1966 : Washington, D.C.)
50th anniversary session [sound recording], 1966 March 15.
Speakers include: C. H. Townes.
Lasers -- History -- 20th century.
Optics -- Congresses.
Sound recordings lcgft
Townes, Charles H.
American Institute of Physics.
American Institute of Physics. Niels Bohr Library & Archives. One Physics Ellipse, College Park, MD 20740, USA