The social gospel in black and white : American racial reform, 1885-1912 / Ralph E. Luker.

by Luker, Ralph E.
Published 1991

Historical dictionary of the civil rights movement / Christopher M. Richardson, Ralph E. Luker.

by Richardson, Christopher M., 1981-, Luker, Ralph E.
Published 2014

The papers of Martin Luther King, Jr. / senior editor, Clayborne Carson ; volume editors, Ralph E. Luker, Penny A. Russell ; advisory editor, Louis R. Harlan.

by King, Martin Luther, Jr., 1929-1968.
Published 1992