HOLMES, J. (2001). An introduction to sociolinguistics.-- ed.2. Longman.
芝加哥风格引文HOLMES, Janet. An Introduction to Sociolinguistics.-- Ed.2. Harlow: Longman, 2001.
MLA引文HOLMES, Janet. An Introduction to Sociolinguistics.-- Ed.2. Longman, 2001.
警告：这些引文格式不一定是100％准确.