Cita APA (7th ed.)
ebrary, Inc, & Schopf, J. W. (2002). Life's origin: The beginnings of biological evolution. University of California Press.
Cita Chicago (17th ed.)
ebrary, Inc, i J. William Schopf. Life's Origin: The Beginnings of Biological Evolution. Berkeley: University of California Press, 2002.
Cita MLA (9th ed.)
ebrary, Inc, i J. William Schopf. Life's Origin: The Beginnings of Biological Evolution. University of California Press, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.