Callinicos A. Trotskyism. Minneapolis: University of Minnesota Press, 1990.
137
Wistrich R. Trotsky: Fate of a Revolutionary. London: Robson Books, 1979.
138
Alexander R.J. Trotskyism in Latin America. Stanford, California: Hoover Institution Press, 1973; Ibid. International Trotskyism. 1929–1985: A Documented Analysis of the Movement. Durham: Duke University Press, 1991.