{"id":"000007660","type":"book","title":"A study of changing pre-Columbian commercial systems : the 1972 - 1973 seasons at Cozumel, Mexico ; a preliminary report / ed. by Jeremy A. Sabloff and William L. Rathje. - Cambridge, MA : Peabody Museum. - XII, 138 S. : 38 Ill. ; 3 Tab. ; 2 Faltkt. als Beil","issued":{"raw":"1975"}}