V.I.Lenin. (1964). What is to be done ? Progress Pub..
Cita Chicago (17th ed.)V.I.Lenin. What Is to Be Done ? Moscow: Progress Pub., 1964.
Cita MLA (9th ed.)V.I.Lenin. What Is to Be Done ? Progress Pub., 1964.
Atenció: Aquestes cites poden no estar 100% correctes.