Não informado. (1977). Adult Literacy & Basic Education. Comission on Adult Basic Education.
Chicago-viite (17. p.)Não informado. Adult Literacy & Basic Education. Auburn, Ala: Comission on Adult Basic Education, 1977.
MLA-viite (8. p.)Não informado. Adult Literacy & Basic Education. Comission on Adult Basic Education, 1977.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.
