Signed paperback book: “O Colosso Anarquista” (“The Anarchist Colossus”), by A. E. van Vogt, Brazilian edition, Colecҫāo Argonauta, 1978, Box: 2, Folder: 12. Papers of A. E. van Vogt, MS 322. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/176624 Accessed April 18, 2024.