APA aipamena

Baker, R. H. (1950). Astronomy: A textbook for University and College Students. New York: D.Van Nostrand Company, Inc.

Chicago Style aipamena

Baker, Ropert H. Astronomy: A Textbook for University and College Students. New York: D.Van Nostrand Company, Inc, 1950.

MLA aipamena

Baker, Ropert H. Astronomy: A Textbook for University and College Students. New York: D.Van Nostrand Company, Inc, 1950.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.