Cita APA (7a ed.)
Mather, K. f. (1930). Sons of the earth: The geologist's view of history. W.W. Norton & copany, inc..
Cita Chicago Style (17a ed.)
Mather, Kirtley fletcher. Sons of the Earth: The Geologist's View of History. New York: W.W. Norton & copany, inc., 1930.
Cita MLA (9a ed.)
Mather, Kirtley fletcher. Sons of the Earth: The Geologist's View of History. W.W. Norton & copany, inc., 1930.
Precaución: Estas citas no son 100% exactas.