Chambers, B., & Dulude, R. (2019). A closed and common orbit (Unabridged.).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रChambers, Becky, और Rachel Dulude. A Closed and Common Orbit. Unabridged. 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रChambers, Becky, और Rachel Dulude. A Closed and Common Orbit. Unabridged. 2019.
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