Winston W. Wiltshire
Scott Shuler
Unknown Author
Edward Hester
Hastings Pavement Company
Ivy Ledbetter Lee
Dan McNichol
United States. Environmental Protection Agency. Office of Air Quality Planning and Standards
Canada. Restrictive Trade Practices Commission
Hans Peter Döhmen
Asphalt and Composition Finishing Apprenticeship Committee National Joint Cement
Robert W. Elfstrom
O. W. Wells