Cash, W. L., & Oliver, L. R. (1975). Black economic development: Analysis and implications : an anthology. Division of Research, Graduate School of Business Administration, University of Michigan.

Cash, William Levi, and Lucy R. Oliver. Black Economic Development: Analysis and Implications : An Anthology. Ann Arbor: Division of Research, Graduate School of Business Administration, University of Michigan, 1975.

Cash, William Levi, and Lucy R. Oliver. Black Economic Development: Analysis and Implications : An Anthology. Division of Research, Graduate School of Business Administration, University of Michigan, 1975.