Powers, G. Black union power in the steel mills: George Powers. A freedomways reader : Afro-America in the seventies.(1977).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPowers, George. "Black Union Power in the Steel Mills: George Powers." A Freedomways Reader : Afro-America in the Seventies.(1977) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रPowers, George. "Black Union Power in the Steel Mills: George Powers." A Freedomways Reader : Afro-America in the Seventies.(1977), .
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