It turns out that the earliest and most extensive published source on Kwarandzyey (Korandje), the language of Tabelbala in southwestern Algeria which I am studying, is downloadable online:
* Cancel, Lt. 1908. "Etude sur le dialecte de Tabelbala". Revue Africaine 52.
Readers may also be interested in Biarnay's study of the probably extinct Tarifit dialect that was then spoken at Arzew, in volumes 54 and 55 of the same publication.