| http://www.w3.org/ns/prov#value | - tion.Rights and Usage:WSB-TV newsfilm clip of African American civil rights leaders including congressman Adam Clayton Powell and Dr. Martin Luther King, Jr. speaking at the Prayer Pilgrimage for Freedom, Washington, D.C., 1957 May 17, WSB-TV newsfilm collection, reel 0772, 47:10/49:06, Walter J. Brown Media Archives and Peabody Awards Collection, The University of Georgia Libraries, Athens, Ga, a
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