Heath, Jeffrey. 1999. A Grammar of Koyraboro (Koroboro) Senni: The Songhay of Gao, Mali. Köln: Rüdiger Köppe Verlag.
@book{sinnemakizeromarking-Heath1999b,
address = {Köln},
author = {Heath, Jeffrey},
publisher = {Rüdiger Köppe Verlag},
title = {A Grammar of Koyraboro (Koroboro) Senni: The Songhay of Gao, Mali},
year = {1999}
}