Ortiz, Simon J. Earth Power Coming. Arizona: Navago Community College Press, 1983

Ortiz, Simon J. Earth Power Coming. Arizona: Navago Community College Press, 1983, Box: 1, Volume: 52. Midwest Distributors records, RH MS 949. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/573926 Accessed March 03, 2026.