00474nam a2200157Ia 450000500170000000800410001708200210005810000190007924500610009826000480015930000210020765000120022865000350024065000230027570000180029820260911151748.0251231s9999||||xx |||||||||||||| ||und||  223a913.3103 WAT  aWatson, Willam 0aCultural frontiers in ancient East Asiac/ Willam Watson  aEdinburghb: At The University Pressc,1971  a185 p.c; 23 cm.  aHistory  a Copper and bronze age.-China-  aCultural Diffusion  aWillam Watson