The sentinel.

Bibliographic Details
Uniform Title:	Sentinel (United States. National Park Service)
Format:	Government Document Journal
Language:	English
Published:	Manassas, VA : National Park Service, U.S. Department of the Interior, 2011-
Subjects:	1861-1865 United States > History > Civil War, 1861-1865 > Periodicals. United States. History. Periodicals.
Online Access:	https://purl.fdlp.gov/GPO/gpo47319

Description
Published:	Began with: Volume I, no. 1 (spring 2011); ceased publication.
Item Description:	GPO Cataloging Record Distribution Program (CRDP).
Physical Description:	1 online resource : illustrations (some color)
Publication Frequency:	Irregular