@book{11297,
	author = {EUROPEAN MONITORING CENTRE FOR DRUGS AND DRUG ADDICTION - EMCDDA, Scientific Seminar on Addiction Prevalence Estimation: Methods and Research Strategies},
	title = {Estimating the prevalence of problem drug use in Europe},
	publisher = {Office for Official Publications of The European Communities},
	year = {1997},
	series = {EMCDDA Scientific Monograph Series},
	address = {Luxembourg}
}