(1940). Regulation and operation of emergency vehicles. Bureau of Municipal Research and Service, University of Oregon, cooperating with the League of Oregon Cities.
Chicago-referens (17:e uppl.)Regulation and Operation of Emergency Vehicles. Eugene: Bureau of Municipal Research and Service, University of Oregon, cooperating with the League of Oregon Cities, 1940.
MLA-referens (8:e uppl.)Regulation and Operation of Emergency Vehicles. Bureau of Municipal Research and Service, University of Oregon, cooperating with the League of Oregon Cities, 1940.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.