@book{105280,
	author = {BESWICK, T. and ET AL.},
	title = {MULTIPLE DRUG USE: PATTERNS AND PRACTICES OF HEROIN AND CRACK USE IN A POPULATION OF OPIATE ADDICTS IN TREATMENT},
	url = {\\Srvdatos\siis\docus\Revistas electrónicas\Drug and Alcohol Review R.1025\2001\Multiple drug use.pdf}
}