National practices for the operation and protection of school zones and crossings; an informational report by Committee on Traffic, Subcommittee on Traffic Control Devices in cooperation with Colorado Department of Highways.
| Data(s) |
31/12/1969
|
|---|---|
| Resumo |
Cover title. Mode of access: Internet. |
| Formato |
ren |
| Identificador | |
| Idioma(s) |
eng |
| Publicador |
Washington, American Association of State Highway Officials |
| Direitos |
Items in this record are available as Public Domain, Google-digitized. View access and use profile at http://www.hathitrust.org/access_use#pd-google. Please see individual items for rights and use statements. |
| Palavras-Chave | #Traffic signs and signals |
| Tipo |
text |
