APA (7th ed.) Citation

Lorenzen, P. (1969). Normative logic and ethics. BI-Hochschultaschenbücher.

Chicago Style (17th ed.) Citation

Lorenzen, Paul. "Normative Logic and Ethics." BI-Hochschultaschenbücher 1969.

MLA (8th ed.) Citation

Lorenzen, Paul. "Normative Logic and Ethics." BI-Hochschultaschenbücher, 1969.

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