APA (7th ed.) Citation

Tyrrell, G., & Petre, M. D. (1920). George Tyrrell's letters. T.F. Unwin.

Chicago Style (17th ed.) Citation

Tyrrell, George, and Maude Dominica Petre. George Tyrrell's Letters. London: T.F. Unwin, 1920.

MLA (8th ed.) Citation

Tyrrell, George, and Maude Dominica Petre. George Tyrrell's Letters. T.F. Unwin, 1920.