APA (7th ed.) Citation

(1921). Astronomičeskij ežegodnik: = Astronomical yearbook. IPA.

Chicago Style (17th ed.) Citation

Astronomičeskij Ežegodnik: = Astronomical Yearbook. Sankt-Peterburg: IPA, 1921.

MLA (9th ed.) Citation

Astronomičeskij Ežegodnik: = Astronomical Yearbook. IPA, 1921.

Warning: These citations may not always be 100% accurate.