APA (7th ed.) Citation

Boutin, M. C., Brinand, S., & Grellet, F. Writing. Intermediate.

Chicago Style (17th ed.) Citation

Boutin, Marie Christine, Suzanne Brinand, and Francoise Grellet. Writing. Intermediate.

MLA (8th ed.) Citation

Boutin, Marie Christine, et al. Writing. Intermediate.