Pettigrew, T. F. (1996). How to think like a social scientist. Longman.
芝加哥风格引文Pettigrew, Thomas F. How to Think like a Social Scientist. New York: Longman, 1996.
MLA引文Pettigrew, Thomas F. How to Think like a Social Scientist. Longman, 1996.
警告：这些引文格式不一定是100％准确.