IAR field - Source
Mandatory: YES
Repeatable: NO
The source(s) of the information found in the resource.
Examples
Source: Data derived from "Use of Crown Copyright" survey
carried out by HMSO 1995-1997
Source: Printed version ISBN 011312196-2 (published 1996)
Source: Information provided by the American Geophysical Union,
Bureau of the Census, Central Intelligence Agency, Defence
Intelligence Agency, Defence Mapping Agency, Defence Nuclear
Agency, Department of State, Foreign Broadcast Information Service,
Naval Maritime Intelligence Centre, Office of Territorial and
International Affairs, US Board on Geographic Names, US Coast
Guard, and others.
Source: Records are created and held by the department or agency
holding the information described.