Jahn, H. (2025, October 7). Helmut Jahn quote. Quotesia. Retrieved from https://quotesia.com/helmut-jahn-quote/275939
Jahn, Helmut. “Helmut Jahn quote”. Quotesia. 7 Oct. 2025: https://quotesia.com/helmut-jahn-quote/275939.
Jahn, H. (2025). Quotesia [Online]. Available at: https://quotesia.com/helmut-jahn-quote/275939 (Accessed: October 7 2025).
Jahn, Helmut. “Helmut Jahn quote” Quotesia. https://quotesia.com/helmut-jahn-quote/275939 (accessed October 7, 2025).
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