Karl Marx – Friedrich Engels. On Religion.

Biblioteca / 1950-1959  2000-2009 Karl Marx – Friedrich Engels. On Religion. Moscú: Foreign Languages Publishing House,…

Tristram Hunt. The Frock-Coated Communist. The Revolutionary Life of Friedrich Engels.

Biblioteca / 2000-2009 Tristram Hunt. The Frock-Coated Communist. The Revolutionary Life of Friedrich Engels. Londres: Allen…

Bert Andréas. La Liga de los Comunistas. Documentos constitutivos.

México: Ediciones de Cultura Popular, 1973.

Karl Marx – Friedrich Engels. Werke. Band 25.

Berlín: Karl Dietz Verlag, 1964.