Listovki Moskovskoĭ organizat︠s︡ii bolʹshevikov 1914-1925 gg. /
Erickson, John,1929-2002,former owner.StEdNL
Erickson, Ljubica,former owner.StEdNL
Gilʹgulin, M.
Moskva : Politizdat,
1954.
John and Ljubica Erickson collection.
Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za