Books by Roger W. Findley:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Findley, Roger W.: Economic impact of removing numerical limits on sound emissions to class C land, R76-19 (State of Illinois, Institute of Natural Resources, 1979), also by Paul Schomer and Marvin Frankel (page images at HathiTrust)- Findley, Roger W.: Economic impact study of proposed airport noise regulations, R 77-4. Volume I : technical study of public airports outside Chicago (State of Illinois, Institute of Natural Resources, 1981), also by Paul Schomer, Marvin Frankel, and Illinois Institute of Natural Resources (page images at HathiTrust)
- Findley, Roger W.: Economic impact study of proposed airport noise regulations, R77-4 (State of Illinois, Institute of Natural Resources, 1981), also by Paul Schomer and Marvin Frankel (page images at HathiTrust)
Find more by Roger W. Findley at your library, or elsewhere.