@book{121996,
	author = {NUTT, D.J. and NASH, J.R.},
	title = {FACTORS LEADING TO HARMFUL CANNABIS USE. EN: CANNABIS. AN UPDATE 1999-2002},
	publisher = {UNIVERSITY OF BRISTOL},
	year = {2002},
	address = {BRISTOL},
	url = {\\Srvdatos\siis\docus\Documentos Internet\Anteriores-2007\Cannabis. An update.pdf}
}