Não informado. (1962). Advances in astronomy and astrophysics. Academic Press.
Chicago-referens (17:e uppl.)Não informado. Advances in Astronomy and Astrophysics. New York: Academic Press, 1962.
MLA-referens (8:e uppl.)Não informado. Advances in Astronomy and Astrophysics. Academic Press, 1962.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.