H. Lothe
H. Lothe
Les gravures du nord-ouest de l'Aïr, Ministry of National Education of the Republic of Niger, 1972, dedicated by Henri Lothe
F. Cabu
Fouilles de Léopoldville- Préhistoire Congo belge, 1935, with photo plates
L. Balout and R. Capot-Rey
Ethnographic collections, Museum of ethnography and prehistory of the Bardo, plates, 1959
J. Chavaillon
Les formations quaternaires du Sahara nord-occidental, CNRS, 1964
J. De Morgan
La préhistoire orientale -tome I généralités, Librairie orientaliste Paul Geuthner, 1925
Dr. Rhotert
43 photographs of the Wadi Sora paintings, annotated in German, 1936