APA Style

McCallion, H. (2020). Undercover war : Britain's Special Forces and their battle against the IRA / Harry McCallion. (1). London: John Blake.

MLA Style

McCallion, Henry. "Undercover war : Britain's Special Forces and their battle against the IRA / Harry McCallion.". 1 London: John Blake, 2020. หนังสือ (Book).