Cita APA (7a ed.)

Henkin, D. M. (2006). The postal age: The emergence of modern communications in nineteenth-century America. University Of Chicago Press.

Cita Chicago Style (17a ed.)

Henkin, David M. The Postal Age: The Emergence of Modern Communications in Nineteenth-century America. Chicago: University Of Chicago Press, 2006.

Cita MLA (8a ed.)

Henkin, David M. The Postal Age: The Emergence of Modern Communications in Nineteenth-century America. University Of Chicago Press, 2006.