APA (7th ed.) Citation

Ludlum, R. (2010). The Holcroft Covenant. Orion.

Chicago Style (17th ed.) Citation

Ludlum, Robert. The Holcroft Covenant. london: Orion, 2010.

MLA (8th ed.) Citation

Ludlum, Robert. The Holcroft Covenant. Orion, 2010.