Cita APA (7th ed.)

(1988). The attrition of French as a foreign language / Bert Weltens.

Cita Chicago (17th ed.)

The Attrition of French as a Foreign Language / Bert Weltens. 1988.

Cita MLA (9th ed.)

The Attrition of French as a Foreign Language / Bert Weltens. 1988.

Atenció: Aquestes cites poden no estar 100% correctes.