Welmers, William Everett. 1968. Efik. (Institute of African Studies, Occasional Publication, 11.) Ibadan, Nigeria: University of Ibadan.
@book{Welmers-1968a, address = {Ibadan, Nigeria}, author = {Welmers, William Everett}, publisher = {University of Ibadan}, series = {Institute of African Studies, Occasional Publication}, title = {Efik}, volume = {11}, year = {1968}, iso_code = {efi}, olac_field = {syntax; general_linguistics; typology}, wals_code = {efi} }