Maddock, L, THE TIME TRAP GAMBIT, , 1969

Maddock, L, THE TIME TRAP GAMBIT, , 1969, Box: 26, Folder: 99. Donald A. Wollheim papers, MS 250. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/241928 Accessed December 25, 2025.