APA aipamena

Arny Thomas T, & Schneider Stephen E. (2007). Explorations: An Introduction to Astronomy. American: Mc Graw Hill.

Chicago Style aipamena

Arny Thomas T, và Schneider Stephen E. Explorations: An Introduction to Astronomy. American: Mc Graw Hill, 2007.

MLA aipamena

Arny Thomas T, và Schneider Stephen E. Explorations: An Introduction to Astronomy. American: Mc Graw Hill, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.