Hopkins, C. C. (2025, October 4). Claude C. Hopkins quote. Quotesia. Retrieved from https://quotesia.com/claude-c-hopkins-quote/137122
Hopkins, Claude C.. “Claude C. Hopkins quote”. Quotesia. 4 Oct. 2025: https://quotesia.com/claude-c-hopkins-quote/137122.
Hopkins, C. C. (2025). Quotesia [Online]. Available at: https://quotesia.com/claude-c-hopkins-quote/137122 (Accessed: October 4 2025).
Hopkins, Claude C.. “Claude C. Hopkins quote” Quotesia. https://quotesia.com/claude-c-hopkins-quote/137122 (accessed October 4, 2025).
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