APA (7th ed.) Citation

Popkorn, S. (2008). First steps in modal logic / Sally Popkorn. Cambridge University Press.

Chicago Style (17th ed.) Citation

Popkorn, Sally. First Steps in Modal Logic / Sally Popkorn. Cambridge: Cambridge University Press, 2008.

MLA (9th ed.) Citation

Popkorn, Sally. First Steps in Modal Logic / Sally Popkorn. Cambridge University Press, 2008.

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