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- Language: English
- Year: 2023
- Author: Spencer A. Leonard
- Language: English
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- Author: Georg Lukács
- Language: German
- Year: 1923
- Author: Szymon Dickstein
- Language: Polish
- Year: 1903
- Author: José Ortega y Gasset
- Language: English
- Year: 2022
- Author: Jackues Duclos
- Language: English
- Author: 列宁 / Lie Ning
- Language: Chinese
- Year: 2009
- Author: Adam Leszczyński
- Language: Polish
- Year: 2020
- Author: Hoernle Edwin, Werder Lutz von, Wolff Reinhart
- Language: German
- Year: 2016
- Author: Edwards Rebekah, Olsen Laurie, Olsen Tillie
- Language: English
- Year: 2013