%0 Book %A National Research Council %T Letter Report to the Bureau of Transportation Statistics %D 2004 %U https://nap.nationalacademies.org/catalog/10938/letter-report-to-the-bureau-of-transportation-statistics %> https://nap.nationalacademies.org/catalog/10938/letter-report-to-the-bureau-of-transportation-statistics %I The National Academies Press %C Washington, DC %G English %P 10 %R doi:10.17226/10938