Feynman, R. P. (1997). Six not-so-easy pieces: Einstein's relativity, symmetry, and space-time. Addison-Wesley Publishing Co.
Chicago Style aipamenaFeynman, Richard Phillips. Six Not-so-easy Pieces: Einstein's Relativity, Symmetry, and Space-time. [S.l.]: Addison-Wesley Publishing Co, 1997.
MLA aipamenaFeynman, Richard Phillips. Six Not-so-easy Pieces: Einstein's Relativity, Symmetry, and Space-time. Addison-Wesley Publishing Co, 1997.
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