(2016). Hidden Collections Initiative for Pennsylvania Small Archival Repositories: Project statistics as of March 31, 2016 (March 31, 2016.). Philadelphia, Pa.: Historical Society of Pennsylvania.
Chicago Style CitationHidden Collections Initiative for Pennsylvania Small Archival Repositories: Project Statistics As of March 31, 2016. March 31, 2016. Philadelphia, Pa.: Historical Society of Pennsylvania, 2016.
MLA CitationHidden Collections Initiative for Pennsylvania Small Archival Repositories: Project Statistics As of March 31, 2016. March 31, 2016. Philadelphia, Pa.: Historical Society of Pennsylvania, 2016.