APA (7th ed.) Citation

(1991). History of the world: The march of Islam AD 600-800. Times-Life Books.

Chicago Style (17th ed.) Citation

History of the World: The March of Islam AD 600-800. Amsterdam: Times-Life Books, 1991.

MLA (9th ed.) Citation

History of the World: The March of Islam AD 600-800. Times-Life Books, 1991.