APA (7th ed.) Citation

Chagrov, A., & Sacharjaščev, M. (1997). Modal logic. Clarendon Press.

Chicago Style (17th ed.) Citation

Chagrov, Alexander, and Michael Sacharjaščev. Modal Logic. Oxford: Clarendon Press, 1997.

MLA (9th ed.) Citation

Chagrov, Alexander, and Michael Sacharjaščev. Modal Logic. Clarendon Press, 1997.