Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context CDWB00240 Date A point or period of time associated with an event in the lifecycle of the resource 1962/01/15-1963/04/25 Source A related resource from which the described resource is derived RG25-A-3-b, vol. 6028, file 50285-40, pt 3.2 "Emergency planning by National Defence Headquarters in event of disaster" , Library and Archives Canada. Creator An entity primarily responsible for making the resource LAC ATIP A-2018-00657 Rights Information about rights held in and over the resource Canadian Crown Subject The topic of the resource Emergency Planning Publisher An entity responsible for making the resource available Canada Declassified Type The nature or genre of the resource Text Format The file format, physical medium, or dimensions of the resource PDF Language A language of the resource en