http://dewey.info/scheme/edition/e23/ en
972.81 Guatemala
972.8101 Early history to 1502
972.81016 Mayan period, ca. 300-ca. 900
http://dewey.info/scheme/edition/e22/ de
972.81 Guatemala
972.8101 Anfänge bis 1502
972.81016 Mayazeit, ca. 300–ca. 900
Dewey Decimal Classification
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