APA (7th ed.) Citation

Jespersen, O., & Haislund, N. (1970). A modern English grammar on historical principles ([Repr., 1970].). George Allen & Unwin [etc.].

Chicago Style (17th ed.) Citation

Jespersen, Otto, and Niels Haislund. A Modern English Grammar on Historical Principles. [Repr., 1970]. London [etc.]: George Allen & Unwin [etc.], 1970.

MLA (9th ed.) Citation

Jespersen, Otto, and Niels Haislund. A Modern English Grammar on Historical Principles. [Repr., 1970]. George Allen & Unwin [etc.], 1970.