APA (7th ed.) Citation

Perry, T. D. (1986). Professional philosophy: What it is and why it matters. D. Reidel.

Chicago Style (17th ed.) Citation

Perry, Thomas D. Professional Philosophy: What It Is and Why It Matters. Dordrecht: D. Reidel, 1986.

MLA (9th ed.) Citation

Perry, Thomas D. Professional Philosophy: What It Is and Why It Matters. D. Reidel, 1986.