American Association of State Highway Officials. Committee on Maintenance and Equipment. (1964). An informational guide for maintenance of shoulders and road approaches: Physical maintenance. [publisher not identified].
Chicago Style (17th ed.) CitationAmerican Association of State Highway Officials. Committee on Maintenance and Equipment. An Informational Guide for Maintenance of Shoulders and Road Approaches: Physical Maintenance. Washington: [publisher not identified], 1964.
MLA (9th ed.) CitationAmerican Association of State Highway Officials. Committee on Maintenance and Equipment. An Informational Guide for Maintenance of Shoulders and Road Approaches: Physical Maintenance. [publisher not identified], 1964.
Warning: These citations may not always be 100% accurate.