APA (7th ed.) Citation

American Association of State Highway Officials. (1940). A policy on intersections at grade. The Association.

Chicago Style (17th ed.) Citation

American Association of State Highway Officials. A Policy on Intersections at Grade. Washington, D.C.: The Association, 1940.

MLA (9th ed.) Citation

American Association of State Highway Officials. A Policy on Intersections at Grade. The Association, 1940.

Warning: These citations may not always be 100% accurate.