Driver testing results
By: prepared under the direction of Harry R. De. Silva, administrator, and Theodore W. Forbes, statistician, Harvard traffic bureau, Cambridge, Massachusetts. W.P.A. project no. 6246-12259, sponsored by Military department, Commonwealth of Massachusetts, Boston. Works progress administration of Massachusetts.
Contributors: De Silva, Harry R. 1898-1990.; Forbes, T. W. 1902-
Published: 1937
Place of publication: [Boston]
Language: eng
Number of pages: 98
Subjects: Automobile drivers.