Schematic Ethnographic Map of the Caucasus
A.F. Liaister and G.F. Chursin
Geografiia Zakavkaz'ia
Zakkniga
1929
Ethnic Map of the Caucasus
Narody Kavkaza Vol. 1
Izd. Akademii Nauk SSSR
1960
Russian
Ethnic Map of the Caucasus
Narody Kavkaza, Vol 2.
Izd. Akademii Nauk SSSR
1962
Russian