Falcke, H., Römer, J., & Yarbrough, M. (2021). Light in the darkness: Black holes, the universe, and us (First edition.). HarperOne, an imprint of HarperCollinsPublishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFalcke, Heino, Jörg Römer, और Marshall Yarbrough. Light in the Darkness: Black Holes, the Universe, and Us. First edition. [San Francisco]: HarperOne, an imprint of HarperCollinsPublishers, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFalcke, Heino, et al. Light in the Darkness: Black Holes, the Universe, and Us. First edition. HarperOne, an imprint of HarperCollinsPublishers, 2021.
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