ROUBAULT, MARCEL - La Kabylie de Collo. Étude géologique.

1934. Bull. Serv. Carte Géol. Algérie (2) 10; 272 pp. 25 fig. 56 photoplts. h.t. 1 plt. with geol. sections folding-out, 1 fold. & col. geol. map 1:100.000. Orig. printed covers, spine repaired with transparant plastic tsape, otherwise and contents very good.