WHO Expert Committee on Drug Dependence twenty-first report.

Manylion Llyfryddiaeth
Awdur Corfforaethol:	WHO Expert Committee on Drug Dependence
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	Geneva World Health Organization 1999.
Pynciau:	Drug abuse. Substance abuse. Drug and Narcotic Corntol.