Silva, Marcelo. Rio Grande Herald (Rio Grande City, Tex.), Vol. 35, No. 20, Ed. 1 Thursday, March 2, 1978, newspaper, March 2, 1978; (https://texashistory.unt.edu/ark:/67531/metapth194651/m1/1/: accessed October 15, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .