APA (7th ed.) Citation

Rocker, R. (1937). The tragedy of Spain. New York : Freie Arbeiter Stimme.

Chicago Style (17th ed.) Citation

Rocker, Rudolf. The Tragedy of Spain. New York : Freie Arbeiter Stimme, 1937.

MLA (8th ed.) Citation

Rocker, Rudolf. The Tragedy of Spain. New York : Freie Arbeiter Stimme, 1937.

Warning: These citations may not always be 100% accurate.