APA Format
Cullis, Harry, (n.d.) Albert "Al" Seep for Colorado Reflections. Retrieved from Special Collections @ DU, https://specialcollections.du.edu/object/30779c28-a41a-4bac-9a2a-acfeebcdd9e2
MLA Format
Cullis, Harry. (n.d.) Albert "Al" Seep for Colorado Reflections. Retrieved from Special Collections @ DU <https://specialcollections.du.edu/object/30779c28-a41a-4bac-9a2a-acfeebcdd9e2>.
Chicago Format
Cullis, Harry. Albert "Al" Seep for Colorado Reflections. n.d.. Retrieved from Special Collections @ DU, https://specialcollections.du.edu/object/30779c28-a41a-4bac-9a2a-acfeebcdd9e2. (Accessed April 30, 2024.)