Campbell, J., & Freeman, D. (2011). The Iron Lady: Margaret Thatcher, from grocer's daughter to prime minister. Penguin Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCampbell, John, और David Freeman. The Iron Lady: Margaret Thatcher, from Grocer's Daughter to Prime Minister. New York: Penguin Books, 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCampbell, John, और David Freeman. The Iron Lady: Margaret Thatcher, from Grocer's Daughter to Prime Minister. Penguin Books, 2011.
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