Duffy, J. P. (1994). How to earn a college degree without going to college (2nd ed.). Wiley.
芝加哥风格引文Duffy, James P. How to Earn a College Degree Without Going to College. 2nd ed. New York: Wiley, 1994.
MLA引文Duffy, James P. How to Earn a College Degree Without Going to College. 2nd ed. Wiley, 1994.
警告：这些引文格式不一定是100％准确.