United States. Government Accountability Office. Defense Management: Observations on DOD's Fiscal Year 2010 Budget Request for Corrosion Prevention and Control, text, June 1, 2009; (https://digital.library.unt.edu/ark:/67531/metadc299388/m1/1/: accessed April 26, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .