Cita APA (7a ed.)
John, R. R. (1995). Spreading the news: The American postal system from Franklin to Morse. Harvard University Press.
Cita Chicago Style (17a ed.)
John, Richard R. Spreading the News: The American Postal System from Franklin to Morse. Cambridge, MA: Harvard University Press, 1995.
Cita MLA (9a ed.)
John, Richard R. Spreading the News: The American Postal System from Franklin to Morse. Harvard University Press, 1995.
Precaución: Estas citas no son 100% exactas.