APA引文

Duffy, J. P. (1994). How to earn a college degree without going to college (2nd ed.). Wiley.

Chicago Style (17th ed.) Citation

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.