Não informado. Problems of the Peoples of the USSR. League for the Libertation of the Peoples of the USSR.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Problems of the Peoples of the USSR. Munich, Alemanha: League for the Libertation of the Peoples of the USSR.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Problems of the Peoples of the USSR. League for the Libertation of the Peoples of the USSR.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.