Ashman, K. M. Measuring the Hubble constant: Objectivity under the telescope / Keith M. Ashman. After the science wars : science and the study of science.(2001).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAshman, Keith M. "Measuring the Hubble Constant: Objectivity Under the Telescope / Keith M. Ashman." After the Science Wars : Science and the Study of Science.(2001) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रAshman, Keith M. "Measuring the Hubble Constant: Objectivity Under the Telescope / Keith M. Ashman." After the Science Wars : Science and the Study of Science.(2001), .
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