Jackson, H. C. 1923. Nuer of the Upper Nile Province. Sudan Notes and Records 6. 59-107, 123-89.
@article{jackson1923,
author = {Jackson, H. C.},
journal = {Sudan Notes and Records},
key = {Jackson (1923)},
pages = {59-107, 123-89},
title = {Nuer of the Upper Nile Province},
volume = {6},
year = {1923}
}