Summers, D. C. (1997). Quality Donna C.s; Ed. Stephen Helba. Prentice-Hall.
Chicago Style (17th ed.) CitationSummers, Donna C.S. Quality Donna C.s; Ed. Stephen Helba. Prentice-Hall, 1997.
Cita MLASummers, Donna C.S. Quality Donna C.s; Ed. Stephen Helba. Prentice-Hall, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.