"Date of copyright."@en-us . "Date Copyrighted"@en-us . . . "Typically a year. Recommended practice is to describe the date, date/time, or period of time as recommended for the property Date, of which this is a subproperty."@en . . . . . . "Date of copyright of the resource."@en . "2002-07-13"^^ . "2008-01-14" . "Date Copyrighted"@en . "2002-07-13" . .