Kahn, James. The Echo Vector. Annotated. Paperback. Mission Cabinet.

Kahn, James. The Echo Vector. Annotated. Paperback. Mission Cabinet., Volume: Burroughs 174. William S. Burroughs entertainment reading collection, Burroughs. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/579395 Accessed December 25, 2025.