Uroki proletarskoĭ revoli︠u︡t︠s︡ii v Vengrii /
Kun, Béla,1886-1939.
Erickson, John,1929-2002,former owner.StEdNL
Erickson, Ljubica,former owner.StEdNL
Moskva : Politizdat,
1960.
John and Ljubica Erickson collection.