Cita APA

Marcus, S. P., & Haeckel, E. (1910). What is this universe?: Christian faith versus monist dreams. Funk and Wagnalls company.

Citación estilo Chicago

Marcus, Sigismund Philipp, and Ernst Haeckel. What Is This Universe?: Christian Faith Versus Monist Dreams. London, New York: Funk and Wagnalls company, 1910.

Cita MLA

Marcus, Sigismund Philipp, and Ernst Haeckel. What Is This Universe?: Christian Faith Versus Monist Dreams. Funk and Wagnalls company, 1910.

Warning: These citations may not always be 100% accurate.