[Pumpjack in Guadalupe County], photograph, August 1976; (https://texashistory.unt.edu/ark:/67531/metapth821275/m1/1/: accessed July 9, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
[Pumpjack in Guadalupe County], photograph, August 1976; (https://texashistory.unt.edu/ark:/67531/metapth821275/m1/1/: accessed July 9, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .