Powers, G. Black union power in the steel mills: George Powers. A freedomways reader : Afro-America in the seventies.(1977).
Chicagoスタイル(17版)引用形式Powers, George. "Black Union Power in the Steel Mills: George Powers." A Freedomways Reader : Afro-America in the Seventies.(1977) .
MLA(8版)引用形式Powers, George. "Black Union Power in the Steel Mills: George Powers." A Freedomways Reader : Afro-America in the Seventies.(1977), .
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