APA (7th ed.) Citation

Grumpy Cat. (2014). The grumpy guide to life: Observations. Chronicle Books.

Chicago Style (17th ed.) Citation

Grumpy Cat. The Grumpy Guide to Life: Observations. San Francisco, California: Chronicle Books, 2014.

MLA (9th ed.) Citation

Grumpy Cat. The Grumpy Guide to Life: Observations. Chronicle Books, 2014.