Assembly of Mathematical and Physical Sciences (U.S.). Astronomy Survey Committee & ebrary, Inc. (1982). Astronomy and astrophysics for the 1980's. National Academy Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAssembly of Mathematical and Physical Sciences (U.S.). Astronomy Survey Committee और Inc ebrary. Astronomy and Astrophysics for the 1980's. Washington, D.C.: National Academy Press, 1982.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAssembly of Mathematical and Physical Sciences (U.S.). Astronomy Survey Committee और Inc ebrary. Astronomy and Astrophysics for the 1980's. National Academy Press, 1982.
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