Locklin, D. Philip  1897- <br/><br/>
Economics of transportation 
by  D. Philip Locklin. 
 - 7th ed. 
 - Homewood, Ill. :  R. D. Irwin,  1972. 
 - xi, 913 p. :  illus. ;  24 cm. 
 - The Irwin series in economics. .
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>76187057  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Transportation--United States.<br/>Railroads--United States.<br/>Transporte--Estados Unidos.<br/>Primera Jornada de Catalogacion.
<br/><br/><label>LC Class. No.: </label>HE 206  / L816e 1972 
<br/><br/><label>Dewey Class. No.: </label>380.5