Rocker, R. (1937). The tragedy of Spain. New York : Freie Arbeiter Stimme.
Chicago Style (17th ed.) CitationRocker, Rudolf. The Tragedy of Spain. New York : Freie Arbeiter Stimme, 1937.
MLA (8th ed.) CitationRocker, Rudolf. The Tragedy of Spain. New York : Freie Arbeiter Stimme, 1937.
Warning: These citations may not always be 100% accurate.