Cita APA (7th ed.)

Chiu, H., & Hoffmann, W. F. (1964). Gravitation and Relativity. W. A. Benjamin.

Cita Chicago (17th ed.)

Chiu, Hong-Yee, i William F. Hoffmann. Gravitation and Relativity. Nueva York: W. A. Benjamin, 1964.

Cita MLA (9th ed.)

Chiu, Hong-Yee, i William F. Hoffmann. Gravitation and Relativity. W. A. Benjamin, 1964.