APA-viite (7. p.)

Sumner, W. G., & Keller, A. G. (1914). The challenge of facts: And other essays. Yale University Press; [etc., etc.].

Chicago-viite (17. p.)

Sumner, William Graham, ja Albert Galloway Keller. The Challenge of Facts: And Other Essays. New Haven: Yale University Press; [etc., etc.], 1914.

MLA-viite (8. p.)

Sumner, William Graham, ja Albert Galloway Keller. The Challenge of Facts: And Other Essays. Yale University Press; [etc., etc.], 1914.