About: http://webisa.webdatacommons.org/233696591

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The first Subseries, President???s Mailings, date from 1966-1976 and include memoranda, correspondence, newsletters (in the early years), reminders, and other material related to the operation of the organization.
http://www.w3.org/ns/prov#wasQuotedFrom	nd.gov