Cita APA (7a ed.)

Chisholm, R. M. (1989). Theory of Knowledge (3th ed.). Prentice Hall Internacional.

Cita Chicago Style (17a ed.)

Chisholm, Roderick M. Theory of Knowledge. 3th ed. Englewood Cliffs [etc.]: Prentice Hall Internacional, 1989.

Cita MLA (9a ed.)

Chisholm, Roderick M. Theory of Knowledge. 3th ed. Prentice Hall Internacional, 1989.