Genesis of Trotskyism the first ten years of the Left Opposition
Shachtman, Max.
International Marxist Group.
London IMG Publications
[1973]
Originally published, as 'Ten years: history and principles of the Left Opposition'. New York: Pioneer Book Shop, 1933
Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za.
Communism.