Cita APA (7th ed.)
Spanagel, D. I. (2014). DeWitt Clinton and Amos Eaton: Geology and power in early New York. The Johns Hopkins University Press.
Cita Chicago (17th ed.)
Spanagel, David I. DeWitt Clinton and Amos Eaton: Geology and Power in Early New York. Baltimore, Maryland: The Johns Hopkins University Press, 2014.
Cita MLA (9th ed.)
Spanagel, David I. DeWitt Clinton and Amos Eaton: Geology and Power in Early New York. The Johns Hopkins University Press, 2014.
Atenció: Aquestes cites poden no estar 100% correctes.