Feynman, R. P., Leighton, R. B., Sands, M. L., & Penrose, R. (2011). Six not-so-easy pieces: Einstein's relativity, symmetry, and space-time. Basic Books/Perseus Books Group.
芝加哥风格引文Feynman, Richard P., Robert B. Leighton, Matthew L. Sands, 与 Roger Penrose. Six Not-so-easy Pieces: Einstein's Relativity, Symmetry, and Space-time. New York: Basic Books/Perseus Books Group, 2011.
MLA引文Feynman, Richard P., et al. Six Not-so-easy Pieces: Einstein's Relativity, Symmetry, and Space-time. Basic Books/Perseus Books Group, 2011.
警告：这些引文格式不一定是100％准确.