| ![](thumb.php?src=products/047/9780472114788.jpg&wmax=80&hmax=80) | How the Incas Built Their Heartland: State Formation and the Innovation of Imperial Strategies in the Sacred Valley, Peru (History, Languages, and Cultures of the Spanish and Portuguese Worlds) | Covey, R. Alan | Hardcover | 0472114786 / 9780472114788 | 03/2006 | $94.00 |