Παραπομπή APA

Rühle, O., Paul, E., & Paul, C. (2018). Karl Marx;his life and work. Routledge.

Παραπομπή Chicago Style

Rühle, Otto, Eden,Tr Paul, και Cedar,Tr Paul. Karl Marx;his Life and Work. London: Routledge, 2018.

Παραπομπή MLA

Rühle, Otto, et al. Karl Marx;his Life and Work. Routledge, 2018.