APA (7th ed.) Citation

Schurz, G. (1997). The Is-Ought Problem: An Investigation in Philosophical Logic. Springer Netherlands.

Chicago Style (17th ed.) Citation

Schurz, Gerhard. The Is-Ought Problem: An Investigation in Philosophical Logic. Dordrecht: Springer Netherlands, 1997.

MLA (9th ed.) Citation

Schurz, Gerhard. The Is-Ought Problem: An Investigation in Philosophical Logic. Springer Netherlands, 1997.