| 1. | Título: Population education Pri. Menção: United Nations Fund for Population Activities ; executive director Rafael M. Salas Data Edição: 1978 COTA(S): RCTD16342 |  | |
| 2. | Título: Statistical study on higher education in Europe : 1970-1975 Pri. Menção: CEPES-Centre Européen pour l''Enseignement Supérieur, UNESCO-United Nations Educational, Scientific and Cultural Organization ; in collaboration with the Office of Statistics ; foreword Th. Keller Data Edição: 1978 COTA(S): ESTUNE11222 | | |