Rockville, MD : U.S. Dept. of Health and Human Services, Public Health Service, National Center for Health Services Research and Health Care Technology Assessment, [1988]
[Washington, D.C.?] : Head Start Bureau, Administration for Children, Youth and Families, Office of Human Development Services, Dept. of Health and Human Services, [1988]
Rockville, MD : U.S. Dept. of Health and Human Services, Public Health Service, Alcohol, Drug Abuse, and Mental Health Administration, National Institute on Drug Abuse ; Washington, DC : For sale by the Supt. of Docs., U.S. G.P.O., 1988