Feynman, R. P. (1997). Six not-so-easy pieces: Einstein's relativity, symmetry, and space-time. Perseus Books.
Citace podle Chicago (17th ed.)Feynman, Richard Phillips. Six Not-so-easy Pieces: Einstein's Relativity, Symmetry, and Space-time. Cambridge: Perseus Books, 1997.
Citace podle MLA (9th ed.)Feynman, Richard Phillips. Six Not-so-easy Pieces: Einstein's Relativity, Symmetry, and Space-time. Perseus Books, 1997.
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