Sobel, D., & Campbell, C. (2016). The glass universe: How the ladies of the Harvard Observatory took the measure of the stars (Unabridged.). Penguin Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSobel, Dava, और Cassandra Campbell. The Glass Universe: How the Ladies of the Harvard Observatory Took the Measure of the Stars. Unabridged. [New York]: Penguin Audio, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSobel, Dava, और Cassandra Campbell. The Glass Universe: How the Ladies of the Harvard Observatory Took the Measure of the Stars. Unabridged. Penguin Audio, 2016.
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