Sixth Congress

บทความ

• (อังกฤษ) The Tactics of the Comintern from 1926 to 1940 (Pt. 3)1946-12-01
• (อิตาลี) Come gli opportunisti combattono la Sinistra1928-07-15
• (อิตาลี) Ricorso presentato dalla Sinistra al sesto Congresso dell’I.C.1928-07-15