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Lloyd D. Johnston

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3 bøger af Lloyd D. Johnston

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The Education-Drug Use Connection

Emily E. Messersmith, Lloyd D. Johnston, John E. Schulenberg, Jerald G. Bachman, Patrick M. O'Malley, Peter Freedman-Doan The Education-Drug Use Connection View_Book

The Decline of Substance Use in Young Adulthood

Alison L. Bryant, Lloyd D. Johnston, John E. Schulenberg, Alicia C. Merline, Jerald G. Bachman, Patrick M. O'Malley The Decline of Substance Use in Young Adulthood View_Book

Smoking, Drinking, and Drug Use in Young Adulthood

Lloyd D. Johnston, John E. Schulenberg, Katherine N. Wadsworth, Patrick M. O'Malley, Jerald G. Bachman Smoking, Drinking, and Drug Use in Young Adulthood View_Book