Pegrum, Dudley Frank,  1898- <br/><br/>
Transportation 
economics and public policy by Dudley F. Pegrum 
 - rev. edition. 
 - Ill  R. D. Irwin : Homewood  1968 
 - xx, 680 p. :  ill., maps. :  24 cm. 
<br/><br/>Bibliography: p. 651-662. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Transportation--United States<br/>Transportation--Law and legislation--United States