APA (7th ed.) Citation

Ehlers. Logic by Way of Set Theory. Holt, Rinehart and Winston.

Chicago Style (17th ed.) Citation

Ehlers. Logic by Way of Set Theory. London / Delhi / New York: Holt, Rinehart and Winston.

MLA (9th ed.) Citation

Ehlers. Logic by Way of Set Theory. Holt, Rinehart and Winston.