Não informado. (2018). Publications of the American Astronomical Society. American Astronomical Society.
Chicago-referens (17:e uppl.)Não informado. Publications of the American Astronomical Society. Ann Arbor, Mich: American Astronomical Society, 2018.
MLA-referens (8:e uppl.)Não informado. Publications of the American Astronomical Society. American Astronomical Society, 2018.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.