Silbey, J. H., & Ashworth, J. (2014). A companion to the antebellum presidents (First edition.). John Wiley & Sons.

Silbey, Joel H., and John Ashworth. A Companion to the Antebellum Presidents. First edition. Chichester, England ;: John Wiley & Sons, 2014.

Silbey, Joel H., and John Ashworth. A Companion to the Antebellum Presidents. First edition. John Wiley & Sons, 2014.