@book{73337,
	author = {Vega, William. and Gil, Andres G. and ebrary, Inc.},
	title = {Drug use and ethnicity in early adolescence},
	publisher = {Plenum Press,},
	year = {c1998.},
	series = {Longitudinal research in the social and behavioral sciences},
	address = {New York :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10046966}
}