Svetli pŭtishta : spomeni /
Delev, Ivan.
Erickson, John,1929-2002,former owner.StEdNL
Erickson, Ljubica,former owner.StEdNL
Sofii︠a︡ : Dŭrzhavno Voenno izd-vo,
1974.
John and Ljubica Erickson collection.
Delev, Ivan.
Communists
Political prisoners