"Pittsburgh (Pa.)" . . . . . "The Pittsburgh directory, for 1815 containing the names, professions, and residence of the heads of families and persons in business, in the borough of Pittsburgh, with an appendix, containing a variety of useful information"@en . "The Pittsburgh directory for 1815 : containing the names, professions, and residence of the heads of families and persons in business in the borough of Pittsburgh ; with an appendix containing a variety of useful information" . . . . "The Pittsburgh directory for 1815 containing the names, professions and residence of the heads of families and persons in business, in the borough of Pittsburgh ; with an appendix containing a variety of useful information"@en . . . "Directories"@en . "Directories" . . . . . "City directories"@en . . . . "The Pittsburgh directory for 1815 : containing the names, professions and residence of the heads of families and persons in business, in the borough of Pittsburgh : with an appendix containing a variety of useful information" . . "Electronic books"@en . "The Pittsburgh directory for 1815 containing the names, professions, and residence of the heads of families and persons in business in the borough of Pittsburgh"@en . "The Pittsburgh directory for 1815 : containing the names, professions and residence of the heads of families and persons in business, in the borough of Pittsburgh : with an appendix containing a variety of useful information"@en . . "The Pittsburgh directory for 1815 containing the names, professions and residence of the heads of families and persons in business, in the borough of Pittsburgh : with an appendix containing a variety of useful information" . "The Pittsburgh directory for 1815 containing the names, professions and residence of the heads of families and persons in business, in the borough of Pittsburgh : with an appendix containing a variety of useful information"@en . . . "University of Pittsburgh. University Library System. Digital Research Library." . .