Robbins, N. B. (2005). Creating more effective graphs. John Wiley.
Chicago Edition CitationRobbins, Naomi B. Creating More Effective Graphs. London: John Wiley, 2005.
Cita MLARobbins, Naomi B. Creating More Effective Graphs. John Wiley, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.