Sears, F. W. (1968). Introduction to the theory of relativity. Addison-Wesley Pub. Co..
Chicago-čujuhus (17. p.)Sears, Francis Weston. Introduction to the Theory of Relativity. Reading, Mass: Addison-Wesley Pub. Co., 1968.
MLA-čujuhus (9. p.)Sears, Francis Weston. Introduction to the Theory of Relativity. Addison-Wesley Pub. Co., 1968.
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