@book{spillmann1931,
  address = {Paris},
  author  = {Spillmann, G.},
  key     = {Spillmann (1931)},
  pages   = {1-201},
  series  = {Villes et Tribus du Maroc},
  title   = {Districts et tribus de la haute vallee du Dra'},
  volume  = {9},
  year    = {1931}
}