Cite

Photos of radio signals

MLA

Todd, David P. (David Peck), 1855-1939. Photos of radio signals. Box 66, folder 496. 22 August 1924. https://collections.library.yale.edu/catalog/10015684.

APA, 6th edition

Todd, David P. (David Peck), 1855-1939. (["Box 66, folder 496"])(22 August 1924)[Photos of radio signals]. https://collections.library.yale.edu/catalog/10015684.