Cite
[Letter from John J. Herrera to Chem Prox Marketing International - 1977-05-24]
MLA
Herrera, John J.. "[Letter from John J. Herrera to Chem Prox Marketing International - 1977-05-24]." University of North Texas. Libraries. 1977-05-24, https://texashistory.unt.edu/ark:/67531/metapth249851/.
APA
Herrera, John J. (1977-05-24). [Letter from John J. Herrera to Chem Prox Marketing International - 1977-05-24]. Retrieved from https://texashistory.unt.edu/ark:/67531/metapth249851/
Chicago
Herrera, John J.. "[Letter from John J. Herrera to Chem Prox Marketing International - 1977-05-24]." 1977-05-24. July 15, 2025. https://texashistory.unt.edu/ark:/67531/metapth249851/.