Cite
[Envelope from Sheehy, Lovelace & Mayfield to John J. Herrera]
MLA
Sheehy, Lovelace & Mayfield. "[Envelope from Sheehy, Lovelace & Mayfield to John J. Herrera]." University of North Texas. Libraries. 1970/1979, https://texashistory.unt.edu/ark:/67531/metapth251501/.
APA
Sheehy, Lovelace & Mayfield (1970/1979). [Envelope from Sheehy, Lovelace & Mayfield to John J. Herrera]. Retrieved from https://texashistory.unt.edu/ark:/67531/metapth251501/
Chicago
Sheehy, Lovelace & Mayfield. "[Envelope from Sheehy, Lovelace & Mayfield to John J. Herrera]." 1970/1979. July 29, 2025. https://texashistory.unt.edu/ark:/67531/metapth251501/.