APA (7th ed.) Citation

Engels, F., Lafargue, L., & Lafargue, P. (1901). Religion, philosophie, socialisme. Paris: G. Jacques.

Chicago Style (17th ed.) Citation

Engels, Friedrich, Laura Lafargue, and Paul Lafargue. Religion, Philosophie, Socialisme. Paris: G. Jacques, 1901.

MLA (8th ed.) Citation

Engels, Friedrich, et al. Religion, Philosophie, Socialisme. Paris: G. Jacques, 1901.