Cita APA (7a ed.)

CHISHOLM, R. M. (1977). Theory of knowledge.--ed.2. Prentice-Hall of India.

Cita Chicago Style (17a ed.)

CHISHOLM, Roderick M. Theory of Knowledge.--ed.2. New Delhi: Prentice-Hall of India, 1977.

Cita MLA (9a ed.)

CHISHOLM, Roderick M. Theory of Knowledge.--ed.2. Prentice-Hall of India, 1977.