This primary source comes from the Records of the National Aeronautics and Space Administration.
Full Citation: George C. Marshall Space Flight Center Public Information Office Release on Project Apollo Contract; 5/16/1961; News Releases May 1961 2/2, 1968 - 1975; News Media Files, 1968 - 1975; Records of the National Aeronautics and Space Administration, Record Group 255; National Archives at Atlanta (RE-AT), Morrow, GA. [Online Version, https://www.docsteach.org/documents/document/marshall-space-flight-center-release-project-apollo-contract, May 1, 2024]