APA (7th ed.) Citation

Debray, M., & Gourion, M. (1970). Mathématique 1re CDE. Fernand Nathan.

Chicago Style (17th ed.) Citation

Debray, Michele, and Marc Gourion. Mathématique 1re CDE. París: Fernand Nathan, 1970.

MLA (9th ed.) Citation

Debray, Michele, and Marc Gourion. Mathématique 1re CDE. Fernand Nathan, 1970.