ISSC-13b Replies to Questions of Sec. 1 of Circ.-8 received and Summarized Circ.-10, before July 15, Box: 88, Folder: 17. Hollis Hedberg papers, RH MS 546. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/151582 Accessed September 27, 2024.