Brown, S. A. (1985). Historic resource study, Slateford Farm, Delaware Water Gap National Recreation Area, Pennsylvania. [Washington, D.C.]: U.S. Dept. of Interior, National Park Service.
Chicago Style CitationBrown, Sharon A. Historic Resource Study, Slateford Farm, Delaware Water Gap National Recreation Area, Pennsylvania. [Washington, D.C.]: U.S. Dept. of Interior, National Park Service, 1985.
MLA CitationBrown, Sharon A. Historic Resource Study, Slateford Farm, Delaware Water Gap National Recreation Area, Pennsylvania. [Washington, D.C.]: U.S. Dept. of Interior, National Park Service, 1985.