Sommerville, J. P., & Sommerville, J. P. (1999). Royalists and patriots: Politics and ideology in England, 1603-1640 (2nd ed.). Addison Wesley Longman.
Chicago-viite (17. p.)Sommerville, J. P., ja J. P. Sommerville. Royalists and Patriots: Politics and Ideology in England, 1603-1640. 2nd ed. New York: Addison Wesley Longman, 1999.
MLA-viite (9. p.)Sommerville, J. P., ja J. P. Sommerville. Royalists and Patriots: Politics and Ideology in England, 1603-1640. 2nd ed. Addison Wesley Longman, 1999.
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