APA (7th ed.) Citation

Chesterton, G. K., & Gill, E. (1927). Gloria in profundis. Faber & Gwyer.

Chicago Style (17th ed.) Citation

Chesterton, G. K., and Eric Gill. Gloria in Profundis. [London: Faber & Gwyer, 1927.

MLA (8th ed.) Citation

Chesterton, G. K., and Eric Gill. Gloria in Profundis. Faber & Gwyer, 1927.