Black 1974

Black, Paul David. 1974. Lowland East Cushitic: Subgrouping and reconstruction. Ph.D. dissertation, Yale University.

@misc{1756,
  author = {Black, Paul David},
  title  = {Lowland East Cushitic: Subgrouping and reconstruction. Ph.D. dissertation, Yale University.},
  year   = {1974}
}