APA (7th ed.) Citation

Campbell, J. (2011). The Iron lady: Margaret Thatcher, from grocer's daughter to prime minister. Penguin Books.

Chicago Style (17th ed.) Citation

Campbell, John. The Iron Lady: Margaret Thatcher, from Grocer's Daughter to Prime Minister. New York: Penguin Books, 2011.

MLA (8th ed.) Citation

Campbell, John. The Iron Lady: Margaret Thatcher, from Grocer's Daughter to Prime Minister. Penguin Books, 2011.

Warning: These citations may not always be 100% accurate.