Fourth International. International Secretariat & Revolutionary Workers' Party (Trotskyist). (1979). Manifesto of the 1st May 1979 of the International Secretariat of the IV International (Trotskyist-Posadist): To the exploited masses of the world, to the masses of the workers states, to the revolutionary masses who struggle for the peoples' liberation from imperialism and capitalism. Revolutionary Workers Party (Trotskyist).

Fourth International. International Secretariat and Revolutionary Workers' Party (Trotskyist). Manifesto of the 1st May 1979 of the International Secretariat of the IV International (Trotskyist-Posadist): To the Exploited Masses of the World, to the Masses of the Workers States, to the Revolutionary Masses Who Struggle for the Peoples' Liberation from Imperialism and Capitalism. London (24 Cranbourn St., W.C.2): Revolutionary Workers Party (Trotskyist), 1979.

Fourth International. International Secretariat and Revolutionary Workers' Party (Trotskyist). Manifesto of the 1st May 1979 of the International Secretariat of the IV International (Trotskyist-Posadist): To the Exploited Masses of the World, to the Masses of the Workers States, to the Revolutionary Masses Who Struggle for the Peoples' Liberation from Imperialism and Capitalism. Revolutionary Workers Party (Trotskyist), 1979.