XXVI sʺezd KPSS i zadachi organizat︠s︡iĭ oboronnogo obshchestva /
Pokryshkin, Oleksandr.
Erickson, John,1929-2002,former owner.StEdNL
Erickson, Ljubica,former owner.StEdNL
Moskva : Izd-vo DOSAAF SSSR,
1981.
John and Ljubica Erickson collection.
DOSAAF SSSR.