Kettering, C. (2026, March 4). Charles Kettering quote. Quotesia. Retrieved from https://quotesia.com/charles-kettering-quote/117960
Kettering, Charles. “Charles Kettering quote”. Quotesia. 4 Mar. 2026: https://quotesia.com/charles-kettering-quote/117960.
Kettering, C. (2026). Quotesia [Online]. Available at: https://quotesia.com/charles-kettering-quote/117960 (Accessed: March 4 2026).
Kettering, Charles. “Charles Kettering quote” Quotesia. https://quotesia.com/charles-kettering-quote/117960 (accessed March 4, 2026).
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