Leaf, S. (2020). Minnesota's Geologist: The Life of Newton Horace Winchell. University of Minnesota Press.
Cita Chicago Style (17a ed.)Leaf, Sue. Minnesota's Geologist: The Life of Newton Horace Winchell. Minneapolis: University of Minnesota Press, 2020.
Cita MLA (8a ed.)Leaf, Sue. Minnesota's Geologist: The Life of Newton Horace Winchell. University of Minnesota Press, 2020.
Precaución: Estas citas no son 100% exactas.