Improving guardrail installations on local roads and streets / 
U.S Department of Transportation. 
 - USA :  U.S Department of Transportation Federal Administration Highway,  1986. 
 - 37 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>MCE
<br/><br/><label>Dewey Class. No.: </label>625.795  / IMP