MLA

The Second Congress of the Communist International : Proceedings of Petrograd Session of July 17th, and of Moscow Sessions of July 19th-august 7th, 1920. America: Pub. Office of the Communist International, 1921.

APA

(1921). The second congress of the Communist International : proceedings of Petrograd session of July 17th, and of Moscow sessions of July 19th-August 7th, 1920. America: Pub. Office of the Communist International.

Chicago

The Second Congress of the Communist International: Proceedings of Petrograd Session of July 17th, and of Moscow Sessions of July 19th-August 7th, 1920. America: Pub. Office of the Communist International, 1921.