APA (7th ed.) Citation

Marckwardt, A. H. (1942). Introduction to the English language. Oxford university press.

Chicago Style (17th ed.) Citation

Marckwardt, Albert H. Introduction to the English Language. Toronto, New York: Oxford university press, 1942.

MLA (9th ed.) Citation

Marckwardt, Albert H. Introduction to the English Language. Oxford university press, 1942.