Fisher, Jami N.Tamminga, MeredtihHochgesang, Julie2023-05-222023-05-222015-07-272019-08-11https://repository.upenn.edu/handle/20.500.14332/33108Philadelphia Signs Project video with participant discussing a lifelong friend he made at PSD.http://creativecommons.org/licenses/by-nc-sa/4.0/Philadelphia Signs Projectsociolinguisticsdeafsign languageAmerican Sign LanguageASLregional variationLanguage Description and DocumentationArticle