books.google.com - Sarah Nelson's book surveys Korean prehistory from the earliest paleolithic settlers, perhaps half a million years ago, through the formation of the Three Kingdoms and on to the creation of United Silla in AD 668, when the peninsula was largely united for the first time. The author treats the development...http://books.google.com/books/about/The_Archaeology_of_Korea.html?id=sANORB_MSRUC&utm_source=gb-gplus-shareThe Archaeology of Korea