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Sperry : inventor and engineer. Baltimore: Johns Hopkins Press. ISBN 978-0-8018-1133-3. Retrieved June 9, 2024. Rand, Sperry (December 1967). A History Of...25 KB (2,259 words) - 04:44, 16 October 2024
Sperry : inventor and engineer. Baltimore: Johns Hopkins Press. ISBN 978-0-8018-1133-3. Retrieved June 9, 2024. Fahrney, Delmer S. (RAdm ret): History of...20 KB (2,056 words) - 16:29, 23 July 2024