APA (7th ed.) Citation

Gourion, M., Lixi, C., & Guggenbuhl, G. (1982). Mathematiques: Exercices et problemes resolus. Fernand Nathan.

Chicago Style (17th ed.) Citation

Gourion, Marc, Christian Lixi, and Gilles Guggenbuhl. Mathematiques: Exercices Et Problemes Resolus. [Paris]: Fernand Nathan, 1982.

MLA (9th ed.) Citation

Gourion, Marc, et al. Mathematiques: Exercices Et Problemes Resolus. Fernand Nathan, 1982.