The Department of Energy`s Rocky Flats Plant: A guide to record series useful for health related research. Volume 4: Production and materials handling, report, August 1, 1995; (https://digital.library.unt.edu/ark:/67531/metadc680262/m1/1/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .