APA-referens (7:e uppl.)

Chisholm, R. M. (1977). Theory of knowledge (2nd ed.). Prentice-Hall.

Chicago-referens (17:e uppl.)

Chisholm, Roderick M. Theory of Knowledge. 2nd ed. Englewood Cliffs, New Jersey: Prentice-Hall, 1977.

MLA-referens (9:e uppl.)

Chisholm, Roderick M. Theory of Knowledge. 2nd ed. Prentice-Hall, 1977.