Extended table of percentage points of the chi-square distribution /

"NAVWEPS report 7770. NOTS TP 2749."

Fatal Accident Reporting System (FARS) data enhancement. Final report.

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

An analyses of responses to the 1971 and 1974 household surveys conducted in Pulaski County, Arkansas.

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

Accidents on spiral transition curves in California. Final report.

Federal Highway Administration, Washington, D.C.