Guidelines for selecting a small highway sign support system., by Hayes E. Ross et al.

Title:	Guidelines for selecting a small highway sign support system.
Author:	Ross, Hayes E.
Author:	Griffin, Lindsay I., III
Note:	Government Printing Office, Washington, D.C., 1979

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Subject:	Breakaway Sign Posts
Subject:	Breakaway supports
Subject:	Compact cars
Subject:	Costs
Subject:	Energy absorption
Subject:	Guidelines
Subject:	Highway Engineering Costs
Subject:	Highway engineering
Subject:	Impact
Subject:	Impact Absorption
Subject:	Linear Dimensions
Subject:	Sign Posts
Subject:	Sign supports
Subject:	Small Automobiles
Subject:	State of the art
Subject:	State-of-the-Art Studies
Other copies:	Look for editions of this book at your library, or elsewhere.