Additional Contributors Are Reinhard H. Luthin, James A. Porter, Werner Cahnman, Oliver C. Cox, And Others.

Additional Contributors Are Ulysses Lee, Alex Ziedenfelt, Sidney Kessler, Mary Susan Chambers, August Meier, And Others.

Additional Contributors Include Anthony Stampolis, William M. Boyd, Langston Hughes And Others.

Contributing Authors Include Anthony Stampolis, William M. Boyd, Langston Hughes, And Many Others.

Additional Contributors Are Rayford W. Logan, Mark Hanna Watkins, Lois Mailou Jones, And Many Others.

Additional Contributors Are Ulysses Lee, Harry Bergholz, Gerald N. Grob, W. Sherman Savage, And Many Others.

Additional Contributors Are Ulysses Lee, Lars Ahnebrink, Paul Giniewski, Horace E. Hamilton, And Many Others.

Additional Contributors Are Howard E. Schuchmann, Ladislas Segy, Hugh Smythe, Mabel M. Smythe, Elspeth Huxley, And Many Others.

Additional Contributors Are Ulysses Lee, William Leo Hansberry, Marie Chay, And Others.

Additional Contributors Are Samuel Abrahams, Louis Wirth, Donald Weismann, And Many Others.

Additional Contributors Are Ulysses Lee, Marie Chay, William Phillips, James Woodress, And Many Others.

Contributing Authors Include Catherine Cater, W. E. B. Dubois, Eugene Lindsay And Many Others.

Additional Contributors Are Ossip K. Flechtheim, V. M. Oliver, Ruth G. Van Horn, And Many Others.

Additional Contributors Are Ulysses Lee, Charles F. Mullett, August Meier, Joseph R. Fiszman, And Others.