Pertold, F. (2009). Sorting into secondary education and peer effects in youth smoking. CERGE-EI.
Chicago-Zitierstil (17. Ausg.)Pertold, Filip. Sorting into Secondary Education and Peer Effects in Youth Smoking. Prague: CERGE-EI, 2009.
MLA-Zitierstil (9. Ausg.)Pertold, Filip. Sorting into Secondary Education and Peer Effects in Youth Smoking. CERGE-EI, 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.