APA (7th ed.) Citation

Lehrer, K. (2000). Theory of knowledge (2nd ed.). Westview Press.

Chicago Style (17th ed.) Citation

Lehrer, Keith. Theory of Knowledge. 2nd ed. Boulder: Westview Press, 2000.

MLA (9th ed.) Citation

Lehrer, Keith. Theory of Knowledge. 2nd ed. Westview Press, 2000.

Warning: These citations may not always be 100% accurate.