APA(7版)引用形式
Weltens, H. H. (1989). The attrition of French as a foreign language. Foris Publications.
Chicagoスタイル(17版)引用形式
Weltens, Hubertus H. The Attrition of French as a Foreign Language. Dordrecht [The Netherlands]: Foris Publications, 1989.
MLA(9版)引用形式
Weltens, Hubertus H. The Attrition of French as a Foreign Language. Foris Publications, 1989.
警告: この引用は必ずしも正確ではありません.