Cita APA (7th ed.)

Cassirier, E. (1953). Substance and function and Einstein's theory of relativity. Dover.

Cita Chicago (17th ed.)

Cassirier, Ernest. Substance and Function and Einstein's Theory of Relativity. Nueva York: Dover, 1953.

Cita MLA (9th ed.)

Cassirier, Ernest. Substance and Function and Einstein's Theory of Relativity. Dover, 1953.