APA (7th ed.) Citation

Hover, D. (1986). Think twice: Communication activities for beginners to intermediate students. Cambridge University Press.

Chicago Style (17th ed.) Citation

Hover, David. Think Twice: Communication Activities for Beginners to Intermediate Students. Cambridge: Cambridge University Press, 1986.

MLA (9th ed.) Citation

Hover, David. Think Twice: Communication Activities for Beginners to Intermediate Students. Cambridge University Press, 1986.