Pannekoek, A., & Richey, L. B. (2003). Lenin as philosopher: A critical examination of the philosophical basis of Leninism (Rev. ed.). Marquette University Press.

Pannekoek, Anton, and Lance Byron Richey. Lenin as Philosopher: A Critical Examination of the Philosophical Basis of Leninism. Rev. ed. Milwaukee, Wis.: Marquette University Press, 2003.

Pannekoek, Anton, and Lance Byron Richey. Lenin as Philosopher: A Critical Examination of the Philosophical Basis of Leninism. Rev. ed. Marquette University Press, 2003.