Dittmer, L. M. Remaining Sites Verification Package for the 120-B-1, 105-B Battery Acid Sump, Waste Site Reclassification Form 2006-057, report, September 25, 2006; (https://digital.library.unt.edu/ark:/67531/metadc900471/m1/1/: accessed December 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .