. . "Multilingvisme." . . "Llenguatge i llengües Ensenyament." . . "Fremdsprachenlernen." . . "Multilingualism in children." . . "Language Acquisition" . . "Language acquisition." . "Sprogindlæring." . . "Zweite Fremdsprache." . . "Interlanguage (Language learning)" . . "Mehrsprachigkeit." . . "Electronic books." . . "Langage et langues Étude et enseignement." . . "Language And Languages Study And Teaching" . . "Language and languages Study and teaching." . "Language and languages Study and teaching" . "Dritte Fremdsprache." . . "Multilingüisme." . . "Multilinguisme." . "LANGUAGE ARTS & DISCIPLINES / Linguistics / Psycholinguistics" . . "Language transfer (Language learning)" . . "Multilingualism." . . "Multilingualism" . "FOREIGN LANGUAGE STUDY General." . . . . . . . . . "Aufsatzsammlung" . . . . "Processes in Third Language Acquisition"@en . . . "Electronic books"@en . . . . "Processes in third language acquisition"@en . . "Processes in third language acquisition" . . . . . . . . . . . . . . "Livres électroniques" . . . . . . . . . .