Books by Johannes F. Schwar:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Schwar, Johannes F. (Johannes Friedrich), 1925-: Criteria for the evaluation of the effectiveness of lane use control signs at intersections : a progress report (Dept. of Civil Engineering, Northwestern University, 1959), also by United States. Bureau of Public Roads, Ill.). Dept. of Civil Engineering Northwestern University (Evanston, and Illinois. Division of Highways (page images at HathiTrust)
Find more by Johannes F. Schwar at your library, or elsewhere.