Washington, D.C. : U.S. Federal Aviation Administration, Office of Aviation Medicine ; [Springfield, Va.] : [Available through the National Technical Information Service], [2001]
Rockville, MD (5600 Fishers Lane, Rockville 20857) : U.S. Dept. of Health and Human Services, Public Health Service, National Institutes of Health, National Institute on Drug Abuse, Division of Epidemiology and Prevention Research, 1995