APA-viite (7. p.)
Spanagel, D. I. (2014). DeWitt Clinton and Amos Eaton: Geology and power in early New York. The Johns Hopkins University Press.
Chicago-viite (17. p.)
Spanagel, David I. DeWitt Clinton and Amos Eaton: Geology and Power in Early New York. Baltimore, Maryland: The Johns Hopkins University Press, 2014.
MLA-viite (9. p.)
Spanagel, David I. DeWitt Clinton and Amos Eaton: Geology and Power in Early New York. The Johns Hopkins University Press, 2014.
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