APA (7 वां संस्करण) प्रशस्ति पत्र

Edward Emerson Barnard, F. b. G. O. D. (2012). A PHOTOGRAPHIC ATLAS OF SELECTED REGIONS OF THE MILKY WAY (1.). Cambridge University Press.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Edward Emerson Barnard, Foreword by Gerald Orin Dobek. A PHOTOGRAPHIC ATLAS OF SELECTED REGIONS OF THE MILKY WAY. 1. Cambridge University Press, 2012.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Edward Emerson Barnard, Foreword by Gerald Orin Dobek. A PHOTOGRAPHIC ATLAS OF SELECTED REGIONS OF THE MILKY WAY. 1. Cambridge University Press, 2012.

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