American Association for the Advancement of Science. (2000). Science; The milky way. s.e.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAmerican Association for the Advancement of Science. Science; The Milky Way. : s.e, 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAmerican Association for the Advancement of Science. Science; The Milky Way. s.e, 2000.
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