Sub-Regional Workshop on Educational and Information Material Concerning the Problems Associated with the Use of Drugs, 1980 :
Sub-Regional Workshop on Educational and Information Material Concerning the Problems Associated with the Use of Drugs, 1980 : Freetown, Sierra Leone. Presentation of the workshop and documents /
Edmée Montando.
- Paris : UNESCO, 1980.
- pág. irregular. ; il.
37.178.8 (6) =20 "1980" PRE.
37.178.8 (6) =20 "1980" PRE.