@article{392881,
      author = {Austen, Ralph A. and Derrick, Jonathan.},
      url = {http://library.usi.edu/record/392881},
      title = {Middlemen of the Cameroons Rivers the Duala and their  hinterland, c.1600-c.1960 / [electronic resource] :},
      publisher = {Cambridge University Press,},
      recid = {392881},
      pages = {xii, 252 p. :},
      address = {Cambridge ;},
      year = {1999},
}