Publications
Extra, Guus. 2011. Urban multilingualism in Europe: Mapping linguistic diversity in multicultural cities. Journal of Pragmatics 43 (5) : 1173–1184.
Extra, Guus, ed. 2008. Mapping Linguistic Diversity in Multicultural Contexts. (Contributions to the Sociology of Language 94). De Gruyter.
Extra, Guus. 1999. Bilingualism and Migration. (Studies on Language Acquisition 14). De Gruyter Mouton.
Extra, Guus. 1999. Immigrant minority groups and immigrant minority languages in Europe. In Extra, Guus. Bilingualism and Migration. (Studies on Language Acquisition 14). De Gruyter Mouton. pp. 3–28.
Extra, Guus. 1999. Processes of language change in a migration context: the case of the Netherlands. In Extra, Guus. Bilingualism and Migration. (Studies on Language Acquisition 14). De Gruyter Mouton. pp. 29–57.
Extra, Guus. 1991. Acquisition of kinship reference: A study on word-formation processes of adult language learners. International Journal of Applied Linguistics 1 (2) : 209–225.