*Sumner, William Graham. ''On Liberty, Society, and Politics: The Essential Essays of William Graham Sumner,'' ed. Robert C. Bannister (Liberty Fund, 1992). [http://oll.libertyfund.org/Home3/Book.php?recordID=0683 online] | *Sumner, William Graham. ''On Liberty, Society, and Politics: The Essential Essays of William Graham Sumner,'' ed. Robert C. Bannister (Liberty Fund, 1992). [http://oll.libertyfund.org/Home3/Book.php?recordID=0683 online] |