Battery Potter, Mortar Battery, Battery Gunnison : historic structure report : Sandy Hook Unit, Gateway National Recreation Area
eBook, English, 2007
Historic Architecture Program, Northeast Region, National Park Service, U.S. Dept. of the Interior, Lowell, Mass., 2007
1 online resource (xxxiv, 485 pages : illustrations, maps, plans
430180524
purl.fdlp.gov connect to online version. (PDF)