https://www.abebooks.com/RITES-SECRETS-PRIMITIFS-LOUBANGUI-Vergiat-A.m/27032826/bd
LES RITES SECRETS DES PRIMITIFS DE L'OUBANGUI by Vergiat, A.m.: (1936) | Ethnographic Arts...
Paris - 1936 - 212 pages of text containing 33 drawings, plus 29 unnumbered pages of photographs. Biebuyck, 817 (later ed.). - LES RITES SECRETS DES PRIMITIFS...