Cita APA (7th ed.)
Goldsmith, D., & Owen, T. (2002). The search for life in the universe (3rd ed.). California.
Cita Chicago (17th ed.)
Goldsmith, Donald, i Tobias Owen. The Search for Life in the Universe. 3rd ed. University science books: California, 2002.
Cita MLA (9th ed.)
Goldsmith, Donald, i Tobias Owen. The Search for Life in the Universe. 3rd ed. California, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.