Belohlavek, J. M. (2005). Broken glass: Caleb Cushing & the shattering of the Union. Kent State University Press.
Čikaški stil citiranja (17. izdanje)Belohlavek, John M. Broken Glass: Caleb Cushing & the Shattering of the Union. Kent, Ohio: Kent State University Press, 2005.
MLA način citiranja (9. izdanje)Belohlavek, John M. Broken Glass: Caleb Cushing & the Shattering of the Union. Kent State University Press, 2005.
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