Traffic Volume Counting Manual 

 - 3rd 
 - Washington  The world bank  1970 
 - iv, 53 p. :  ill, ;  24 cm. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>MCE (D)
<br/><br/><label>Dewey Class. No.: </label>388.3142  / GUI