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publicdomain.cfm
publicdomain.cfm
http://copyright.cornell.edu/resources/publicdomain.cfm
Copyright Term Extension Act
Copyright Catalog
Copyright law of the United States
Copyright status of The Wizard of Oz and related works in the United States
Link from a Wikipage to an external page
publicdomain.cfm
http://copyright.cornell.edu/resources/publicdomain.cfm