APA (7th ed.) Citation

Laffan, R. G. D. (1918). The Guardians of the gate. Clarendon Pr.

Chicago Style (17th ed.) Citation

Laffan, Robert George Dalrymple. The Guardians of the Gate. Oxford: Clarendon Pr, 1918.

MLA (9th ed.) Citation

Laffan, Robert George Dalrymple. The Guardians of the Gate. Clarendon Pr, 1918.