Summers, D. C. S. (2003). Quality (3rd ed.). Prentice Hall.
芝加哥风格引文Summers, Donna C. S. Quality. 3rd ed. Columbus, Ohio: Prentice Hall, 2003.
MLA引文Summers, Donna C. S. Quality. 3rd ed. Prentice Hall, 2003.
警告:这些引文格式不一定是100%准确.
Summers, D. C. S. (2003). Quality (3rd ed.). Prentice Hall.
芝加哥风格引文Summers, Donna C. S. Quality. 3rd ed. Columbus, Ohio: Prentice Hall, 2003.
MLA引文Summers, Donna C. S. Quality. 3rd ed. Prentice Hall, 2003.