Statistics on psychotropic substances for 1986: furnished by governments in accordance with the Convention of 1971 on Psychotropic Substances, resolution I of the United Nations Conference for the Adoption of a Protocol on Psychotropic Substances and resolution 1576 (L) of the Economic and Sla Confârence des Nations Unies pour l'adoption d'un protocole sur les substances psychotropes et á la râsolution 1576 (L) du conseil âconomique et social, Estadâsticas de sustancias sicotrâpicas para 1986, facilitadas por los gobiernos en cumplimiento del convenio de 1971 sobre Suconâmico y Social | Myboeken