APA (7th ed.) Citation

Billet, J., & Eckert, C. (1987). Ja zu Deutsch: Seconde langue. Nathan.

Chicago Style (17th ed.) Citation

Billet, Jacques, and Charles Eckert. Ja Zu Deutsch: Seconde Langue. [Paris]: Nathan, 1987.

MLA (9th ed.) Citation

Billet, Jacques, and Charles Eckert. Ja Zu Deutsch: Seconde Langue. Nathan, 1987.

Warning: These citations may not always be 100% accurate.