Gordon, J.; Zeiger, H.; Townes, Charles (1955). "The Maser—New Type of Microwave Amplifier, Frequency Standard, and Spectrometer". Physical Review. 99 (4): 1264–1274. Bibcode:1955PhRv...99.1264G. doi:10.1103/PhysRev.99.1264.
^Bertolotti, Mario (2004). The History of the Laser. Taylor & Francis. ISBN978-0-7503-0911-0.
^Bromberg, Joan (1991). The Laser in America, 1950–1970. MIT Press. ISBN978-0-585-36732-3.
^Chiao, Raymond, penyunting (1996). Amazing Light: A Volume Dedicated To Charles Hard Townes On His 80th Birthday. Springer. ISBN978-0-387-94658-0.
^Chiao, Raymond, penyunting (2005). Visions of Discovery: New Light on Physics, Cosmology, and Consciousness, A Volume Dedicated to Charles Hard Townes on his 90th Birthday. Cambridge. ISBN978-0-521-88239-2.
^Haynie, Rachel (2014). First, You Explore: The Story of Young Charles Townes (Young Palmetto Books). University of South Carolina Press. ISBN978-1-61117-343-7.
^Hecht, Jeff (2005). Beam: The Race to Make the Laser. Oxford University Press. ISBN978-0-19-514210-5.
Charles Townes Oral History part 1 Childhood, college, career overview, Recorded at IEEE History Center, August 1991, Retrieved May 1, 2015
Charles Townes Oral History part 2 Studies at Caltech and work at Bell Labs on the eve of World War II, Recorded at IEEE History Center, September 1992, Retrieved May 1, 2015
The Learning Project[pautan mati kekal] Charles Hard Townes, physicist, astronomer, university professor. Interview for The Learning Project: Views of Authentic Learning, June 2005