Vingt lettres de Leon Trotzky.

MLA

Rosmer, Alfred. Vingt Lettres De Leon Trotzky. [S.l.]: [s.n.], 1919.

APA

Rosmer, A. (1919). Vingt lettres de Leon Trotzky. [S.l.]: [s.n.].

Chicago

Rosmer, Alfred Vingt Lettres De Leon Trotzky. [S.l.]: [s.n.], 1919.