The Condition of the Working Class in England

缺少或|url=为空 (帮助) Frederick Engels, "The Condition of the Working Class in England", contained in the Collected Works of Karl Marx and Frederick Engels: Volume

Conditions of the Working-Class in England Index. www.marxists.org. [2023-06-21]. （原始内容存档于2019-10-11）.  Industrial Revolution and the Standard of Living.

01729.x. In conclusion, the evidence is insufficient to suggest that reiki is an effective treatment for any condition. Therefore the value of reiki remains

弗里德里希·恩格斯會面，開始兩人深厚的友誼。恩格斯向馬克思介紹他在同一年出版的《英國工人階級狀況（英语：The Condition of the Working Class in England）》，說服馬克思承認工人階級將是歷史上最後的革命和組成成員。恩格斯之後於9月時前往巴黎居住，並且和馬克思

may trigger neurological condition in rare cases. STAT. 2021-07-12 [2021-08-30]. （原始内容存档于2021-09-10） （美国英语）.  Unusual Variant of Guillain-Barré Syndrome