Briggs y Dressler, 1961, pp. 214-223. Briggs, A.; Dressler, A. (octubre de 1961). «The Communist Party of the Soviet Union by Leonard Schapiro». Soviet Studies (Taylor & Francis, Ltd.) 1 (2): 214-223. ISSN0038-5859. JSTOR148987.
Waddington, 1979, pp. 82-91. Waddington, Patrick (1979). «Turgenev: his Life and Times by Leonard Schapiro». New Zealand Slavonic Journal (Australia and New Zealand Slavists’ Association) (1): 82-91. ISSN0028-8683. JSTOR40921103.
Thurston, 1986, pp. 239-242. Thurston, Bob (1986). «The Russian Revolutions of 1917: The Origins of Modern Communism by Leonard Schapiro; Rethinking the Soviet Experience: Politics and History since 1917 by Stephen F. Cohen». Science & Society(en inglés) (Guilford Press) 50 (2): 239-242. ISSN1943-2801. JSTOR40402705.
Briggs y Dressler, 1961, pp. 214-223. Briggs, A.; Dressler, A. (octubre de 1961). «The Communist Party of the Soviet Union by Leonard Schapiro». Soviet Studies (Taylor & Francis, Ltd.) 1 (2): 214-223. ISSN0038-5859. JSTOR148987.
Waddington, 1979, pp. 82-91. Waddington, Patrick (1979). «Turgenev: his Life and Times by Leonard Schapiro». New Zealand Slavonic Journal (Australia and New Zealand Slavists’ Association) (1): 82-91. ISSN0028-8683. JSTOR40921103.
Thurston, 1986, pp. 239-242. Thurston, Bob (1986). «The Russian Revolutions of 1917: The Origins of Modern Communism by Leonard Schapiro; Rethinking the Soviet Experience: Politics and History since 1917 by Stephen F. Cohen». Science & Society(en inglés) (Guilford Press) 50 (2): 239-242. ISSN1943-2801. JSTOR40402705.