Trailers-on-flat-cars--"piggy backs"--memorandum listing material on history of service 1926-1953
By: by Elizabeth O. Cullen, librarian.  Oct. 14, 1953, rev. to Feb. 2, 1954
Contributors: Cullen, Elizabeth O. (Elizabeth Orlan)
Publisher: publisher not identified
Published: 1954
Place of publication: Washington
Language: eng
Number of pages: 79
Subjects: Piggyback trailers; Railroads; Freight; Bibliography
Other titles: Piggy backs.
Notes: Cover title.