Special study of rail rapid transit safety
Subtitle: adopted: June 16, 1971.
Series: Special study.; 71-1
Publisher: For sale by U.S. Dept. of Commerce, National Technical Information Service (NTIS), Springfield, Va.1
Published: 1971
Place of publication: Washington
Language: eng
Number of pages: 28
Subjects: Railroads -- United States -- Safety measures.
Notes: Includes bibliographical references.