APA (7th ed.) Citation

O'Sullivan, P. (1998). The Lusitania: Unravelling the mysteries. Collins Press.

Chicago Style (17th ed.) Citation

O'Sullivan, Patrick. The Lusitania: Unravelling the Mysteries. Westlink Park, Doughcloyne, Cork: Collins Press, 1998.

MLA (9th ed.) Citation

O'Sullivan, Patrick. The Lusitania: Unravelling the Mysteries. Collins Press, 1998.