So dna mori︠a︡ : dokumentalʹnai︠a︡ povestʹ /
Lepeshkov, Stepan Ivanovich.
Erickson, John,1929-2002,former owner.StEdNL
Erickson, Ljubica,former owner.StEdNL
Medvedev, Fedor Konstantinovich.
Moskva : Izd-vo DOSAAF SSSR,
1977.
John and Ljubica Erickson collection.
Submarine warfare