MLA

Dominicy, Marc, and Christian Peeters. Linguistics In Belgium. 4. Brussel: Didier, 1981.

APA

Dominicy, M., & Peeters, C. (1981). Linguistics in Belgium. 4. Brussel: Didier.

Chicago

Dominicy, Marc, ed., and Christian Peeters ed. Linguistics In Belgium. 4. Brussel: Didier, 1981.