APA (7th ed.) Citation

Lichtenheld, T. (2006). What are you so grumpy about? (1st pbk. ed.). Little, Brown.

Chicago Style (17th ed.) Citation

Lichtenheld, Tom. What Are You so Grumpy About? 1st pbk. ed. New York: Little, Brown, 2006.

MLA (9th ed.) Citation

Lichtenheld, Tom. What Are You so Grumpy About? 1st pbk. ed. Little, Brown, 2006.