APA (7th ed.) Citation

Feys, R., & Dopp, J. (1965). Modal logics. E. Nauwelaerts.

Chicago Style (17th ed.) Citation

Feys, Robert, and Joseph Dopp. Modal Logics. Louvain: E. Nauwelaerts, 1965.

MLA (8th ed.) Citation

Feys, Robert, and Joseph Dopp. Modal Logics. E. Nauwelaerts, 1965.

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