Tubb, E.C. Dumarest of Terra: #20, Web of Sand, , 1979

Tubb, E.C. Dumarest of Terra: #20, Web of Sand, , 1979, Box: 34, Folder: 105. Donald A. Wollheim papers, MS 250. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/242546 Accessed December 25, 2025.