Bergman, P. G. (1987). Introduction to the theory of relativity.
Dyfyniad Arddull ChicagoBergman, Peter Gabriel. Introduction to the Theory of Relativity. New Delhi, Prentice-Hall, 1987.
Dyfyniad MLABergman, Peter Gabriel. Introduction to the Theory of Relativity. 1987.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.