Citace podle APA (7th ed.)
Cobbs Hoffman, E. (2013). American umpire: The new rules of world order, 1776 to the present. Harvard University Press.
Citace podle Chicago (17th ed.)
Cobbs Hoffman, Elizabeth. American Umpire: The New Rules of World Order, 1776 to the Present. Cambridge, Mass.: Harvard University Press, 2013.
Citace podle MLA (9th ed.)
Cobbs Hoffman, Elizabeth. American Umpire: The New Rules of World Order, 1776 to the Present. Harvard University Press, 2013.
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