Spalding. "football." Georgia Institute of Technology. Library. Archives, Records Management and Digital Curation Department . 1890/1996, http://history.library.gatech.edu/files/original/gta0068b_dean-dull-football_10d0a17505.jpg.

Spalding (1890/1996). football. Retrieved from http://history.library.gatech.edu/files/original/gta0068b_dean-dull-football_10d0a17505.jpg

Spalding. "football." 1890/1996. July 27, 2025. http://history.library.gatech.edu/files/original/gta0068b_dean-dull-football_10d0a17505.jpg.