year of publication | ISBN | author(s) | title |
---|---|---|---|
1995 | 978-0-9650280-0-4 | Jeffrey P Levine | Pittsburgh business directory |
1997 | 978-0-9650280-1-1 | Jeffrey P. Levine | Pittsburgh Business Directory (2nd Edition) |
2000 | 978-0-9650280-2-8 | '' | Pittsburgh Business Directory (3rd edition) |