Pegrum, Dudley Frank,  1898- <br/><br/>
Transportation 
economics and public policy by Dudley F. Pegrum 
 - 3rd. edition. 
 - Ill  R. D. Irwin : Homewood  1973 
 - xx, 596 p. :  ill., maps. ;  24 cm. 
<br/><br/>Bibliography: p. 569-579. 
<br/><br/><label>ISBN: </label>025601440X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Transportation--United States<br/>Transportation--Law and legislation--United States