TY  - BOOK
ED  - Observatorio Europeo de Drogas y ToxicomanÃ­as
TI  - The ESPAD validity study in four countries in 2013
SN  - 978-92-9168-826-5
PY  - 2015///
CY  - Luxembourg
PB  - Publications Office of the European Union
KW  - Drogas
KW  - PrevenciÃ³n
KW  - Menores
KW  - PaÃ­ses de la UniÃ³n Europea
UR  - http://www.emcdda.europa.eu/attachements.cfm/att_241133_EN_TD0215523ENN.pdf
ER  -