Não informado. (2022). Publications of the United States Naval Observatory. Government Printing Office.
Chicago-viite (17. p.)Não informado. Publications of the United States Naval Observatory. Washington: Government Printing Office, 2022.
MLA-viite (8. p.)Não informado. Publications of the United States Naval Observatory. Government Printing Office, 2022.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.