APA (7th ed.) Citation

Wardale, E. E. (1937). An introduction to Middle English. K. Paul, Trench, Trubner & Co., ltd..

Chicago Style (17th ed.) Citation

Wardale, E. E. An Introduction to Middle English. London: K. Paul, Trench, Trubner & Co., ltd., 1937.

MLA (8th ed.) Citation

Wardale, E. E. An Introduction to Middle English. K. Paul, Trench, Trubner & Co., ltd., 1937.