@book{118074,
  author           = {Utip, E.},
  school           = {University of Port Harcourt},
  title            = {A comparative study of Ibibio, Annang and Efik vowels},
  year             = {1989},
  inlg             = {English [eng]},
  keywords         = {;waf;nga;lng;phn;t.241;t.242;t.244;ths;},
  lgcode           = {Efik [efi], Ibibio [ibb], Anaang [anw] (autotranslated from Maho's coding system)},
  macro_area       = {Africa},
  src              = {eballiso2009, weball},
  subject_headings = {waf, nga, lng, phn, t.241, t.242, t.244, ths}
}