Lavrenko, E. M. (1984). Sukhie stepi MNR =: Bnmau-yn khuuraĭ KhĖĖR. Izd-vo "Nauka," Leningradskoe otd-nie.
Dyfyniad Arddull ChicagoLavrenko, Evgeniĭ Mikhaĭlovich. Sukhie Stepi MNR =: Bnmau-yn Khuuraĭ KhĖĖR. Leningrad: Izd-vo "Nauka," Leningradskoe otd-nie, 1984.
Dyfyniad MLALavrenko, Evgeniĭ Mikhaĭlovich. Sukhie Stepi MNR =: Bnmau-yn Khuuraĭ KhĖĖR. Izd-vo "Nauka," Leningradskoe otd-nie, 1984.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.