Cita APA

Ohanian, H. C. 1., & Ruffini, R. (1994). Gravitation and spacetime (2. edition.). New York: W.W. Norton.

Citación estilo Chicago

Ohanian, Hans C. 1941-, y Remo Ruffini. Gravitation and Spacetime. 2. edition. New York: W.W. Norton, 1994.

Cita MLA

Ohanian, Hans C. 1941-, y Remo Ruffini. Gravitation and Spacetime. 2. edition. New York: W.W. Norton, 1994.