Lloyd Johnston

No biography available.

Works (11)

Cover of National survey results on drug use from the Monitoring the Future study, 1975-1997

National survey results on drug use from the Monitoring the Future study, 1975-1997

Cover of National survey results on drug use from the Monitoring the Future study, 1975-1998

National survey results on drug use from the Monitoring the Future study, 1975-1998

Cover of National survey results on drug use from the Monitoring the Future Study, 1975-1993

National survey results on drug use from the Monitoring the Future Study, 1975-1993

Cover of Drugs and American youth

Drugs and American youth

Cover of National survey results on drug use from the Monitoring the Future study, 1975-1992 (NIH publication)

National survey results on drug use from the Monitoring the Future study, 1975-1992 (NIH publication)

Cover of Conducting followup research on drug treatment programs

Conducting followup research on drug treatment programs

Cover of Drug use among American high school seniors, college students, and young adults, 1975-1990

Drug use among American high school seniors, college students, and young adults, 1975-1990

Cover of Monitoring the future national survey results on drug use, 1975-2000

Monitoring the future national survey results on drug use, 1975-2000

Cover of National survey results on drug use from the Monitoring the Future study, 1975-1994

National survey results on drug use from the Monitoring the Future study, 1975-1994

Cover of National Survey Results on Drug Use from the Monitoring the Future Study, 1975-1995 (Nih Publication)

National Survey Results on Drug Use from the Monitoring the Future Study, 1975-1995 (Nih Publication)

Cover of Smoking, drinking, and illicit drug use among American secondary school students, college students, and young adults, 1975-1991

Smoking, drinking, and illicit drug use among American secondary school students, college students, and young adults, 1975-1991