This primary source comes from the Collection DDE-EPRES: Eisenhower, Dwight D.: Papers as President of the United States.
Full Citation: Press Clipping - Soviet Rejection to Interview Powers; 5/10/1960; U-2 Incident - Press (1); Subject Files, 1953 - 1961; Collection DDE-EPRES: Eisenhower, Dwight D.: Papers as President of the United States; Dwight D. Eisenhower Library, Abilene, KS. [Online Version, https://www.docsteach.org/documents/document/soviet-rejection-powers, May 11, 2024]