Pomper, P., & Felshtinsky, Y. (1986). Trotsky's notebooks, 1933-1935: Writings on Lenin, dialectics and evolutionism. New York: Columbia University Press.
Citazione stile Chigago Style (17a edizione)Pomper, Philip, e Yuri Felshtinsky. Trotsky's Notebooks, 1933-1935: Writings on Lenin, Dialectics and Evolutionism. New York: Columbia University Press, 1986.
Citatione MLA (8a ed.)Pomper, Philip, e Yuri Felshtinsky. Trotsky's Notebooks, 1933-1935: Writings on Lenin, Dialectics and Evolutionism. New York: Columbia University Press, 1986.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.