APA (7th ed.) Citation

Walzer, M. (2011). On humanitarianism: Is helping others charity, or duty, or both? Foreign affairs, 90 (July-August 2011) 4, 69-80.

Chicago Style (17th ed.) Citation

Walzer, Michael. "On Humanitarianism: Is Helping Others Charity, or Duty, or Both?" Foreign Affairs 90 (July-August 2011) 4 (2011): 69-80.

MLA (8th ed.) Citation

Walzer, Michael. "On Humanitarianism: Is Helping Others Charity, or Duty, or Both?" Foreign Affairs, 90 (July-August 2011) 4, 2011, pp. 69-80.