Calibration and testing of selected portable flowmeters for use on large irrigation systems /

"September 1980."--P. 2 of cover.

Magnetic flowmeter output potentials : flowmeters /

"March 1, 1952."

Driver aid and education test project. Final report.

Energy Department, Division of Transportation Conservation, Washington, D.C.

Field evaluation of miles-per-gallon meters. Final report.

Transportation Systems Center, Cambridge, Mass.

Survey of driver aid devices for improved fuel economy. Interim report.

Transportation Systems Center, Cambridge, Mass.