Boyd, R. (2003). How humans evolved. New York: W. W. Norton & Company.
Chicago Style CitationBoyd, Robert. How Humans Evolved. New York: W. W. Norton & Company, 2003.
Cita MLABoyd, Robert. How Humans Evolved. New York: W. W. Norton & Company, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.