Kamphoefner, W. D. (1987). The Westfalians: From Germany to Missouri / Walter D. Kamphoefner. Princeton University Press.
Chicago-viite (17. p.)Kamphoefner, Walter D. The Westfalians: From Germany to Missouri / Walter D. Kamphoefner. Princeton, New Jersey: Princeton University Press, 1987.
MLA-viite (8. p.)Kamphoefner, Walter D. The Westfalians: From Germany to Missouri / Walter D. Kamphoefner. Princeton University Press, 1987.
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