Railroad safety problems
Subtitle: federal safety legislation and administration
By: by W. L. Hsieh.
Publisher: Printed at T. Chu
Published: 1930
Place of publication: [Shanghai
Language: eng
Number of pages: 140
Subjects: Railroads -- United States -- Accidents; Railroads -- United States -- Safety appliances
Notes: Thesis (PH. D.)--University of Pennsylvania, 1930.

Bibliography: 2 p. at end.