APA (7th ed.) Citation

SpringerLink (Online service) & Wansing, H. (1996). Proof theory of modal logic. Springer.

Chicago Style (17th ed.) Citation

SpringerLink (Online service) and H. Wansing. Proof Theory of Modal Logic. Dordrecht: Springer, 1996.

MLA (9th ed.) Citation

SpringerLink (Online service) and H. Wansing. Proof Theory of Modal Logic. Springer, 1996.

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