Washington, D.C.  U.S. Dept. of transportation, Federal Highways. 

 - Washington, D.C.  U.S. Dept. of transportation, Federal Highway Administration  For sale by the Supt. of Docs., U.S. G.P.O.  1978- 
 - 1 v. (looseleaf)  ill. (some col.)  25 cm. 
<br/><br/> "This edition developed with the cooperation of the National Advisory Committee on Uniform Traffic Control Devices."  "D6.1--1978."  "Supersedes D6.1--1971"--T.p. Verso. 
<br/><br/><label>ISBN: </label> 18.00 (U.S., includes basic manual and supplemental material for an indeterminate period) 22.50 (foreign) 
<br/><br/><label>LCCN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Traffic signs and signals--Handbooks, Manuals, etc.--United States<br/>Señales de tránsito--Revistas, manuales, etc.--Estados Unidos
<br/><br/><label>Dewey Class. No.: </label>388.3/12 
<br/><br/><label>GPO Item No.: </label>982-G-2 
<br/><br/><label>Gov. Doc. Class. No.: </label>TD 2.8:T 67/978 
<br/><br/><label>Report. No.: </label>D 6.1--1978