APA (7th ed.) Citation

Putter, A. (1996). An introduction to the Gawain-poet. Longman.

Chicago Style (17th ed.) Citation

Putter, Ad. An Introduction to the Gawain-poet. London: Longman, 1996.

MLA (9th ed.) Citation

Putter, Ad. An Introduction to the Gawain-poet. Longman, 1996.