{"id":"000026107","type":"book","title":"Unearthing America's ancient history : investigations suggests that the Maya have designed the first astronomical observatory in the New World in order to cultivate corn. - Washington, D.C","container-title":"The national geographic magazine ; 60.1931, S. 99-126 : 27 Ill","author":[{"family":"Morley","given":"Sylvanus Griswold"}],"issued":{"raw":"1931"}}