APA (7th ed.) Citation

Roberts, G. (1976). The most powerful man in the world: The life of Sir Henri Deterding. Hyperion Press.

Chicago Style (17th ed.) Citation

Roberts, Glyn. The Most Powerful Man in the World: The Life of Sir Henri Deterding. Westport, Conn.: Hyperion Press, 1976.

MLA (9th ed.) Citation

Roberts, Glyn. The Most Powerful Man in the World: The Life of Sir Henri Deterding. Hyperion Press, 1976.