Zettel, S. (2013). Palace of spies: Being a true, accurate, and complete account of the scandalous and wholly remarkable adventures of Margaret Preston Fitzroy, counterfeit lady, accused thief, and confidential agent at the court of his majesty, King George I. Houghton Mifflin Harcourt.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रZettel, Sarah. Palace of Spies: Being a True, Accurate, and Complete Account of the Scandalous and Wholly Remarkable Adventures of Margaret Preston Fitzroy, Counterfeit Lady, Accused Thief, and Confidential Agent at the Court of His Majesty, King George I. Boston: Houghton Mifflin Harcourt, 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रZettel, Sarah. Palace of Spies: Being a True, Accurate, and Complete Account of the Scandalous and Wholly Remarkable Adventures of Margaret Preston Fitzroy, Counterfeit Lady, Accused Thief, and Confidential Agent at the Court of His Majesty, King George I. Houghton Mifflin Harcourt, 2013.