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