https://digital.library.pitt.edu/islandora/object/pitt:31735056285699
The History of Pittsburgh | Digital Pitt
by Neville B. Craig., OCLCN: (OCoLC)213411076
the history ofpittsburghdigital
https://archive.org/details/historypittsbur01yorkgoog/
History of Pittsburgh and environs, from prehistoric days to the beginning of the American...
Book digitized by Google from the library of Harvard University and uploaded to the Internet Archive by user tpb.
history of pittsburgh
https://archive.org/details/historyofpittsbu00kill_0/page/n8/mode/2up
The history of Pittsburgh : its rise and progress : Killikelly, Sarah H. (Sarah Hutchins),...
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the history of