King, G., & Wilson, P. (2017). Twilight of empire: The tragedy at Mayerling and the end of the Habsburgs (First edition.). St. Martin's Press.
Cita Chicago Style (17a ed.)King, Greg, y Penny Wilson. Twilight of Empire: The Tragedy at Mayerling and the End of the Habsburgs. First edition. New York: St. Martin's Press, 2017.
Cita MLA (8a ed.)King, Greg, y Penny Wilson. Twilight of Empire: The Tragedy at Mayerling and the End of the Habsburgs. First edition. St. Martin's Press, 2017.
Precaución: Estas citas no son 100% exactas.