Scientific and Technical Mobilization Part 13, Use of Radio for Railroad Communication and Signaling - hearings before a subcommittee of the Committee on Military Affairs, United States Senate, Seventy-Eighth Congress, second session, on Feb. 11 and 12, 1944

Förlag	År	Ort	Om boken	ISBN
U.S. Government Printing Office	1944	District of Columbia, Washington	s.1559-1653