| Call Number | Title | Author | Status | |
| Gov.HE20.3968:975-99/v.2 | Monitoring the future : national survey results on drug use, 1975-. | Johnston, Lloyd. | IN | |
| Gov.HE20.3968:975-99/v.1 | Monitoring the future : national survey results on drug use, 1975-. | Johnston, Lloyd. | IN | |
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