Barnard, T. (1991). The English Republic, 1649-1660 ([1st pub., 6th imp.].). Longman.
Chicago Style (17th ed.) CitationBarnard, Toby. The English Republic, 1649-1660. [1st pub., 6th imp.]. London [etc.]: Longman, 1991.
MLA (9th ed.) CitationBarnard, Toby. The English Republic, 1649-1660. [1st pub., 6th imp.]. Longman, 1991.
Warning: These citations may not always be 100% accurate.