Muller, R. (2016). Now: The physics of time (First edition.). W.W. Norton & Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMuller, R. Now: The Physics of Time. First edition. New York ; London: W.W. Norton & Company, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMuller, R. Now: The Physics of Time. First edition. W.W. Norton & Company, 2016.
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