Texas Agricultural Extension Service. Texas Pecan Pest Management Newsletter, Volume 92, Number 2, April 1992, periodical, April 8, 1992; (https://texashistory.unt.edu/ark:/67531/metapth1624303/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .