books.google.co.uk - A landmark book rolls out a bold, new, energy-based theory of human history based on a simple, yet powerful law: whoever controls the world's effective energy supplies during a given energy age will inevitably dominate the economic, political, and cultural history of that age....http://books.google.co.uk/books/about/Sources_of_Power.html?id=dcYHzuFLZP0C&utm_source=gb-gplus-shareSources of Power
