Skylab Experiments Volume 2 Remote Sensing of Earth Resources: Information for Teachers, Including Suggestions on Relevance to School Curricula, 1973-05, Box: 4, Folder: 78. Paul Todd Collection, MC-179. The University of Alabama in Huntsville Archives & Special Collections. http://libarchstor.uah.edu:8081/repositories/2/archival_objects/41286 Accessed April 19, 2025.