APA (7th ed.) Citation

Kohn, A. (2011). The Case Against GRADES. Educational Leadership, 69(3), 28.

Chicago Style (17th ed.) Citation

Kohn, Alfie. "The Case Against GRADES." Educational Leadership 69, no. 3 (2011): 28.

MLA (9th ed.) Citation

Kohn, Alfie. "The Case Against GRADES." Educational Leadership, vol. 69, no. 3, 2011, p. 28.