| Keystone of Democracy A History of Pennsylvania Workers | | | Author:
| Harris, Howard
Blatz, Perry K. | | Contribution by:
| Pennsylvania Historical and Museum Commission Staff, | | ISBN: | 978-0-89271-084-3 | | Publication Date: | Jan 1999 | | Publisher: | Pennsylvania Historical & Museum Commission
| | Book Format: | Hardback | | List Price: | Contact Supplier contact
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