Spear, S. (2015). Pennsylvania histories: Two hundred years of personalities and events, 1750-1950. Lehigh University Press.
Cita Chicago Style (17a ed.)Spear, Sheldon. Pennsylvania Histories: Two Hundred Years of Personalities and Events, 1750-1950. Bethlehem: Lehigh University Press, 2015.
Cita MLA (8a ed.)Spear, Sheldon. Pennsylvania Histories: Two Hundred Years of Personalities and Events, 1750-1950. Lehigh University Press, 2015.
Precaución: Estas citas no son 100% exactas.