Palonka, r. (2011). Defensive Architecture and the Depopulation of the Mesa Verde Region, Utah-Colorado in the Thirteenth Century A.D. Jagiellonian University Press.

Palonka, radoslaw. Defensive Architecture and the Depopulation of the Mesa Verde Region, Utah-Colorado in the Thirteenth Century A.D. Kraków: Jagiellonian University Press, 2011.

Palonka, radoslaw. Defensive Architecture and the Depopulation of the Mesa Verde Region, Utah-Colorado in the Thirteenth Century A.D. Jagiellonian University Press, 2011.