Frawley, William E.; Borowiec, Jefferey D.; Protopapa, Annie A.; Morgan, Curtis Alan & Warner, Jeffery E. Landside freight access to airports : findings and case studies, report, August 2010; (https://texashistory.unt.edu/ark:/67531/metapth303467/m1/1/: accessed August 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .