APA (7th ed.) Citation

Wekker, H., & Haegeman, L. (1985). A modern course in English syntax. Routledge.

Chicago Style (17th ed.) Citation

Wekker, Herman, and Liliane Haegeman. A Modern Course in English Syntax. London: Routledge, 1985.

MLA (9th ed.) Citation

Wekker, Herman, and Liliane Haegeman. A Modern Course in English Syntax. Routledge, 1985.

Warning: These citations may not always be 100% accurate.