Cita APA (7th ed.)

Bergmann, P. G. (1942). Introduction to the theory of relativity. Prentice-Hall.

Cita Chicago (17th ed.)

Bergmann, Peter Gabriel. Introduction to the Theory of Relativity. Nueva York: Prentice-Hall, 1942.

Cita MLA (9th ed.)

Bergmann, Peter Gabriel. Introduction to the Theory of Relativity. Prentice-Hall, 1942.