TY - BOOK T1 - Progression and regression in language sociocultural, neuropsychological and linguistic perspectives A2 - Hyltenstam, Kenneth A2 - Viberg, Åke LA - English PP - Cambridge, United Kingdom PB - Cambridge University Press YR - 1993 ED - 1a edición UL - https://colectivo.uloyola.es/Record/L223628 OP - 487 SN - 0521438748 KW - Sociolingüística KW - Cambio linguístico KW - Psicolingüística ER -