Boyce, D. G., & O'Day, A. (2001). Defenders of the Union : a survey of British and Irish unionism since 1801 / edited by D. George Boyce and Alan O'Day: A survey of British and Irish unionism since 1801. Routledge.
Chicago Style (17th ed.) CitationBoyce, D. G., and Alan O'Day. Defenders of the Union : A Survey of British and Irish Unionism Since 1801 / Edited by D. George Boyce and Alan O'Day: A Survey of British and Irish Unionism Since 1801. London: Routledge, 2001.
MLA (9th ed.) CitationBoyce, D. G., and Alan O'Day. Defenders of the Union : A Survey of British and Irish Unionism Since 1801 / Edited by D. George Boyce and Alan O'Day: A Survey of British and Irish Unionism Since 1801. Routledge, 2001.
Warning: These citations may not always be 100% accurate.