Heine, Bernd. 1999. Ik dictionary. (Nilo-Saharan: linguistic analyses and documentation (NISA), 15.) Köln: Rüdiger Köppe Verlag.
@book{heineik1999,
author = {Heine, Bernd},
publisher = {Köln: Rüdiger Köppe Verlag},
series = {Nilo-Saharan: linguistic analyses and documentation (NISA)},
title = {Ik dictionary},
volume = {15},
year = {1999}
}