APA (7th ed.) Citation

Aiken, H. D. (1956). The age of ideology: The 19 th century philosophers. The New American Library.

Chicago Style (17th ed.) Citation

Aiken, Henry D. The Age of Ideology: The 19 Th Century Philosophers. Nueva York: The New American Library, 1956.

MLA (9th ed.) Citation

Aiken, Henry D. The Age of Ideology: The 19 Th Century Philosophers. The New American Library, 1956.