APA (7th ed.) Citation

Keell , T. H., Nettlau , M., Kropotkine , P., & FREEDOM. Letter to Max Nettlau, Sept. 13th, 1919. [s.n.].

Chicago Style (17th ed.) Citation

Keell , Thomas H., Max Nettlau , Pierre Kropotkine , and FREEDOM. Letter to Max Nettlau, Sept. 13th, 1919. [s.n.].

MLA (8th ed.) Citation

Keell , Thomas H., et al. Letter to Max Nettlau, Sept. 13th, 1919. [s.n.].