Overview of transportation R&D : hearings before the Subcommittee on Technology and Innovation, Committee on Science and Technology, One Hundred Eleventh Congress, first session, February 12, 2009 and March 31, 2009.

Coverage: Washington : U.S. G.P.O. : 2009.

Volumes:

An overview of transportation R&D : hearings before the Subcommittee on Technology and Innovation, Committee on Science and Technology, One Hundred Eleventh Congress, first session, February 12, 2009 and March 31, 2009.