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.
AIP-ICOS
American Institute of Physics. Niels Bohr Library & Archives. One Physics Ellipse, College Park, MD 20740, USA