APA aipamena

Edmund C. Sutton. (2012). Observational Astronomy (1.). Cambridge University Press.

Chicago Style aipamena

Edmund C. Sutton. Observational Astronomy. 1. Cambridge University Press, 2012.

MLA aipamena

Edmund C. Sutton. Observational Astronomy. 1. Cambridge University Press, 2012.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.