Biton, Alexandre. 1969. Dictionnaire ndumu-mbede-francais et francais-ndumu-mbede. Petite flore de la region de Franceville (Gabon). Grammaire ndumu-mbede. Libreville: l'Archeveche.
@book{Biton-1969, address = {Libreville}, author = {Biton, Alexandre}, publisher = {l'Archeveche}, title = {Dictionnaire ndumu-mbede-francais et francais-ndumu-mbede. Petite flore de la region de Franceville (Gabon). Grammaire ndumu-mbede}, year = {1969}, iso_code = {nmd}, olac_field = {general_linguistics; typology; semantics; syntax}, wals_code = {ndu} }