APA (7th ed.) Citation

Hasler, S., Everall, G., & Wills, C. (2014). O: A prayer book. Book Works.

Chicago Style (17th ed.) Citation

Hasler, Samuel, Gavin Everall, and Camilla Wills. O: A Prayer Book. London: Book Works, 2014.

MLA (9th ed.) Citation

Hasler, Samuel, et al. O: A Prayer Book. Book Works, 2014.