@book{barth1961,
  address   = {London},
  author    = {Barth, F. K.},
  key       = {Barth (1961)},
  publisher = {George Allen & Unwin},
  title     = {Nomads of South Persia. The Basseri Tribe of the Khamseh Confederacy},
  year      = {1961}
}