Bergmann, P. G. (1976). Introduction to the theory of relativity. New York: Dover Publications.
Παραπομπή Chicago StyleBergmann, Peter Gabriel. Introduction to the Theory of Relativity. New York: Dover Publications, 1976.
Παραπομπή MLABergmann, Peter Gabriel. Introduction to the Theory of Relativity. New York: Dover Publications, 1976.
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