@book{vorobevandhisamutdinov1967,
  address = {Moscow},
  editor  = {Vorob'ev, N. I. and Hisamutdinov, G. M.},
  key     = {Vorob'ev and Hisamutdinov (1967)},
  title   = {Tatary Srednego Povolzh'ja i Priural'ja (The Tatar of the Middle Volga and Ural Region)},
  year    = {1967}
}