APA aipamena

Fix, J. D. (2004). Astronomy: Journey to the cosmic frontier (3rd ed.). Boston: McGraw-Hill Higher Education.

Chicago Style aipamena

Fix, John D. Astronomy: Journey to the Cosmic Frontier. 3rd ed. Boston: McGraw-Hill Higher Education, 2004.

MLA aipamena

Fix, John D. Astronomy: Journey to the Cosmic Frontier. 3rd ed. Boston: McGraw-Hill Higher Education, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.