TY  - GEN
AU  - Tashjian, Christene A.
AU  - Silvia, E. Suyapa
AU  - Thorne, Judy
TI  - School-based drug prevention programs : a longitudinal study in selected school districts : local education agency cross-site analysis : final report [PDF]
PY  - 1996///
CY  - [S.l.]
PB  - US Department of Education
KW  - drugs
KW  - longitudinaal onderzoek
KW  - onderwijs
KW  - onderzoeksrapporten
KW  - preventie
KW  - VS
UR  - http://www.google.com/search?q=School-based-drug prevention-programs a-longitudinal-study-in-selected-school-districts
ER  -