Corfield, F. D. 1938. The Koma. Sudan Notes and Records 25. 123-165.
@article{corfield1938,
author = {Corfield, F. D.},
journal = {Sudan Notes and Records},
key = {Corfield (1938)},
pages = {123-165},
title = {The Koma},
volume = {25},
year = {1938}
}