APA (7th ed.) Citation

Epstein, D. W. (1948). Photometry in television engineering. Electronics (1930)., 21, 110.

Chicago Style (17th ed.) Citation

Epstein, D. W. "Photometry in Television Engineering." Electronics (1930). 21 (1948): 110.

MLA (9th ed.) Citation

Epstein, D. W. "Photometry in Television Engineering." Electronics (1930)., vol. 21, 1948, p. 110.

Warning: These citations may not always be 100% accurate.