Norwood, Warren. The Windhover Tapes: Fize of the Gabriel Ratchets. New York, Bantam

Norwood, Warren. The Windhover Tapes: Fize of the Gabriel Ratchets. New York, Bantam, Box: 27, Folder: 9. Papers of Theodore Sturgeon, MS 254. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/244152 Accessed December 24, 2025.