APA (7th ed.) Citation

Avrich , P., Sarnoff , L., & Flores Magon , R. (1977). Prison letters of Ricardo Flores Magon to Lilly Sarnoff. IISG.

Chicago Style (17th ed.) Citation

Avrich , Paul, Lilly Sarnoff , and Ricardo Flores Magon. Prison Letters of Ricardo Flores Magon to Lilly Sarnoff. IISG, 1977.

MLA (8th ed.) Citation

Avrich , Paul, et al. Prison Letters of Ricardo Flores Magon to Lilly Sarnoff. IISG, 1977.