Filtragem por: Contributor Datelle, Henry R. Remover Contributor: Datelle, Henry R. Contributor Glazer, David L. Remover Contributor: Glazer, David L. Location PA History Center Remover Location: PA History Center Sujeito Datelle, Henry R. Remover Sujeito: Datelle, Henry R. Sujeito Professional Role Remover Sujeito: Professional Role Year 1980 Remover Year: 1980