Lightman, A. P., Press, . W. H., Price, R. H., & Teukolsky, S. A. (1975). Problem book in relativity and gravitation. Princeton University Press.
Chicago Style aipamenaLightman, Alan P., William H. Press, Richard H. Price, and Saul A. Teukolsky. Problem Book in Relativity and Gravitation. Princeton, N.J.: Princeton University Press, 1975.
MLA aipamenaLightman, Alan P., et al. Problem Book in Relativity and Gravitation. Princeton University Press, 1975.
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