APA (7th ed.) Citation

(1954). The Social Democratic Party of Germany. [S.D.P.].

Chicago Style (17th ed.) Citation

The Social Democratic Party of Germany. [S.D.P.], 1954.

MLA (8th ed.) Citation

The Social Democratic Party of Germany. [S.D.P.], 1954.

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