@misc{Ruckij_Petr'_Obŝestva,
 author={Ruckij, Petr'},
 copyright={Ruckij, Petr'},
 address={Riga},
 howpublished={online},
 publisher={Izdanie Br. Bašmakovyh'},
 language={rus},
 type={książka},
 title={Obŝestva Liflândskoj gubernii},
}