APA (7th ed.) Citation

Armitage, S. (2008). Sir Gawain and the green knight (1st publ. in 2007.). Faber and Faber.

Chicago Style (17th ed.) Citation

Armitage, Simon. Sir Gawain and the Green Knight. 1st publ. in 2007. London: Faber and Faber, 2008.

MLA (9th ed.) Citation

Armitage, Simon. Sir Gawain and the Green Knight. 1st publ. in 2007. Faber and Faber, 2008.

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