Watkins, Ralph J.
Transportation and national policy / Ralph J. Watkins - Washington : Government Printing Office , 1942 - xi, 513p. : ill. ; 33 cm.
Includes bibliographical references and index.
Transport and communications
Economic policy
Transport
385.073 / US
Transportation and national policy / Ralph J. Watkins - Washington : Government Printing Office , 1942 - xi, 513p. : ill. ; 33 cm.
Includes bibliographical references and index.
Transport and communications
Economic policy
Transport
385.073 / US