@book{janguzin1987,
  address = {Ufa},
  author  = {Janguzin, R. Z.},
  key     = {Janguzin (1987)},
  title   = {Sotsial'najas trukturab ashkirskogoo bshchestvav XVIII-XIX vv. (Social Structure of the Bashkir Society in the Eighteenth and Nineteenth Centuries)},
  year    = {1987}
}