"The Next 50 Years," John Platt, Harold Taylor, Joseph Sittler, Ralph G. H. Siu, John E. Burchard, Robert C. Wood, Herman Kahn. 9 tapes. Broadcast over WBAI-fm, Pacific Radio

"The Next 50 Years," John Platt, Harold Taylor, Joseph Sittler, Ralph G. H. Siu, John E. Burchard, Robert C. Wood, Herman Kahn. 9 tapes. Broadcast over WBAI-fm, Pacific Radio, Box: 4. William R. Ewald papers, 4876. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/500268 Accessed October 27, 2025.