Grazhdanskai︠a︡ voĭna i voennai︠a︡ intervent︠s︡ii︠a︡ v SSSR : ėnt︠s︡iklopedii︠a︡ /
Erickson, John,1929-2002,former owner.StEdNL
Erickson, Ljubica,former owner.StEdNL
880-04Khromov, S. S.(Semen Spiridonovich)
880-05Azovt︠s︡ev, Nikolaĭ Nikolaevich.
Moskva : Sovetskai︠a︡ ėnt︠s︡iklopedii︠a︡,
1987.
John and Ljubica Erickson collection.