Aėrosnimki v voennom dele /
Welzer, Winfried.
Erickson, John,1929-2002,former owner.StEdNL
Erickson, Ljubica,former owner.StEdNL
Moskva : Voen. izd-vo,
1990.
John and Ljubica Erickson collection.
Aerial reconnaissance.
Photographic interpretation.