National Research Council (U.S.). Astronomy and Astrophysics Survey Committee & ebrary, Inc. (1991). The decade of discovery in astronomy and astrophysics. National Academy Press.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Lua i Stíl Chicago (17ú heag.)
National Research Council (U.S.). Astronomy and Astrophysics Survey Committee agus Inc ebrary. The Decade of Discovery in Astronomy and Astrophysics. Washington, D.C.: National Academy Press, 1991.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Lua MLA (9ú heag.)
National Research Council (U.S.). Astronomy and Astrophysics Survey Committee agus Inc ebrary. The Decade of Discovery in Astronomy and Astrophysics. National Academy Press, 1991.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.