APA (7th ed.) Citation

Pritchard, D. (2010). What is this thing called knowledge? (2. ed.). Routledge.

Chicago Style (17th ed.) Citation

Pritchard, Duncan. What Is This Thing Called Knowledge? 2. ed. London [u.a.]: Routledge, 2010.

MLA (8th ed.) Citation

Pritchard, Duncan. What Is This Thing Called Knowledge? 2. ed. Routledge, 2010.