Cita APA (7a ed.)

Summers, D. C. (2014). Quality (Fifth edition, Pearson new international edition.). Pearson.

Cita Chicago Style (17a ed.)

Summers, Donna C. Quality. Fifth edition, Pearson new international edition. Harlow, England: Pearson, 2014.

Cita MLA (8a ed.)

Summers, Donna C. Quality. Fifth edition, Pearson new international edition. Pearson, 2014.