APA (7th ed.) Zitazioa
Weltens, H. H. (1989). The attrition of French as a foreign language. Foris Publications.
Chicago Style (17th ed.) Zitazioa
Weltens, Hubertus H. The Attrition of French as a Foreign Language. Dordrecht [The Netherlands]: Foris Publications, 1989.
MLA (9th ed.) Zitazioa
Weltens, Hubertus H. The Attrition of French as a Foreign Language. Foris Publications, 1989.
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