Are social security changes working? [microform] : a report from the field : hearing before the Subcommittee on Retirement Income and Employment of the Select Committee on Aging, House of Representatives, One Hundred First Congress, first session, April 21, 1989.

"Comm. pub. no. 100-723 [i.e. 101-723]."

The visual detection of driving while intoxicated; field test of visual cues and detection methods. Final report.

National Highway Traffic Safety Administration, Office of Driver and Pedestrian Research, Washington, D.C.

Field study of driver visual performance during rainfall. Final report.

National Highway Traffic Safety Administration, Washington, D.C.