APA (7th ed.) Citation

Gregory, J., & Grey, D. J. R. (2020). Union and disunion in the nineteenth century. Routledge, Taylor & Francis Group.

Chicago Style (17th ed.) Citation

Gregory, James, and Daniel J. R. Grey. Union and Disunion in the Nineteenth Century. London ; New York: Routledge, Taylor & Francis Group, 2020.

MLA (9th ed.) Citation

Gregory, James, and Daniel J. R. Grey. Union and Disunion in the Nineteenth Century. Routledge, Taylor & Francis Group, 2020.