APA (7th ed.) Citation

Coulmas, F., & Ehlich, K. (1983). Writing in focus. Mouton.

Chicago Style (17th ed.) Citation

Coulmas, Florian, and Konrad Ehlich. Writing in Focus. Berlin ; New York: Mouton, 1983.

MLA (8th ed.) Citation

Coulmas, Florian, and Konrad Ehlich. Writing in Focus. Mouton, 1983.