editors, Dan J. Lettieri, Mollie Sayers, Helen Wallenstein Pearson

Department of Health and Human Services, Public Health Service, Alcohol, Drug Abuse, and Mental Health Administration, National Institute on Drug Abuse, Division of Research , For sale by the Superintendent of Documents, U.S. Government Printing Office 1980 NIDA research monograph 30 , DHHS publication no. (ADM) 80-967

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