APA (7 वां संस्करण) प्रशस्ति पत्र
Michrina, B. P. (2004). Pennsylvania mining families: The search for dignity in the coalfields. University Press of Kentucky.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Michrina, Barry P. Pennsylvania Mining Families: The Search for Dignity in the Coalfields. Lexington, Kentucky: University Press of Kentucky, 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Michrina, Barry P. Pennsylvania Mining Families: The Search for Dignity in the Coalfields. University Press of Kentucky, 2004.
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