APA (7th ed.) Citation

Jespersen, O. (1927). A modern English grammar on historical principles. Allan and Unwin.

Chicago Style (17th ed.) Citation

Jespersen, Otto. A Modern English Grammar on Historical Principles. London: Allan and Unwin, 1927.

MLA (8th ed.) Citation

Jespersen, Otto. A Modern English Grammar on Historical Principles. Allan and Unwin, 1927.

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