Date Published
              2006
          Summary
              Air Emissions Factors and Quantification, Chapter 13: Miscellaneous Sources
Cited In
          
      Reference Information
              U.S. Environmental Protection Agency. 2006. AP 42, Fifth Edition, Volume I, Chapter 13: Miscellaneous Sources. 13.2.2 Unpaved roads. Available at: Miscellaneous Sources. Accessed October 23, 2020.