Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

Walzer, Michael. "On Humanitarianism: Is Helping Others Charity, or Duty, or Both?" Foreign Affairs 90, no. 4 (2011): 69-80.

Style de citation MLA (8e éd.)

Walzer, Michael. "On Humanitarianism: Is Helping Others Charity, or Duty, or Both?" Foreign Affairs, vol. 90, no. 4, 2011, pp. 69-80.