Marx, K., & Engels, F. (1964). On religion. Schocken Books.
Citación estilo ChicagoMarx, Karl, and Friedrich Engels. On Religion. New York: Schocken Books, 1964.
Cita MLAMarx, Karl, and Friedrich Engels. On Religion. Schocken Books, 1964.
Warning: These citations may not always be 100% accurate.