Books by Billy G. Williams:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Williams, Billy G.: Aircraft noise definition : individual aircraft technical data model 727 (Federal Aviation Administration, Office of Environmental Quality, 1973), also by R. Yates (page images at HathiTrust)- Williams, Billy G.: Aircraft noise definition : individual aircraft technical data--model 737 (Federal Aviation Administration, Office of Environmental Quality, 1973), also by R. Yates and United States. Federal Aviation Administration. Office of Economic Quality (page images at HathiTrust)
- Williams, Billy G.: Aircraft noise definition : individual aircraft technical data--model 747 (Federal Aviation Administration, Office of Environmental Quality, 1973), also by R. Yates and United States. Federal Aviation Administration. Office of Environmental Quality (page images at HathiTrust)
Find more by Billy G. Williams at your library, or elsewhere.