Dietzgen, J., Rothstein, F. A., Dietzgen, E., Untermann, E., Dietzgen, J., Jr., & Beer, M. (1906). Some of the philosophical essays on socialism and science: Religion, ethics, critique-of-reason and the world-at-large. Chicago: C. H. Kerr.

Dietzgen, Joseph, Fedar Arnovich Rothstein, Eugen Dietzgen, Ernest Untermann, Joseph Dietzgen, Jr, and M. Beer. Some of the Philosophical Essays On Socialism and Science: Religion, Ethics, Critique-of-reason and the World-at-large. Chicago: C. H. Kerr, 1906.

Dietzgen, Joseph, et al. Some of the Philosophical Essays On Socialism and Science: Religion, Ethics, Critique-of-reason and the World-at-large. Chicago: C. H. Kerr, 1906.