Rapports :
Rapports : Comissionsdu programme, commission administrative, comité juridique (volume 2)
- París : UNESCO, 1974.
- 218 p.
9232011565
DO 341.16: 001 (047.3) =40 1972 INF No. 17
9232011565
DO 341.16: 001 (047.3) =40 1972 INF No. 17