APA (7th ed.) Citation

Koopman, W., Leek, F. v. d., Fischer, O., & Eaton, R. (1987). Explanation and linguistic change. Benjamins.

Chicago Style (17th ed.) Citation

Koopman, W., Frederike van der Leek, Olga Fischer, and R. Eaton. Explanation and Linguistic Change. Amsterdam: Benjamins, 1987.

MLA (9th ed.) Citation

Koopman, W., et al. Explanation and Linguistic Change. Benjamins, 1987.