APA (7th ed.) Citation

Underhill, E., & Williams, C. (1991). The letters of Evelyn Underhill (1. publ. in paperback in Great Britain.). Darton, Longman & Todd.

Chicago Style (17th ed.) Citation

Underhill, Evelyn, and Charles Williams. The Letters of Evelyn Underhill. 1. publ. in paperback in Great Britain. London: Darton, Longman & Todd, 1991.

MLA (8th ed.) Citation

Underhill, Evelyn, and Charles Williams. The Letters of Evelyn Underhill. 1. publ. in paperback in Great Britain. Darton, Longman & Todd, 1991.

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