APA (7th ed.) Citation

Petrillo, G., & Lyon, L. (2007). Keep your ear on the ball (1st hardcover ed.). Tilbury House.

Chicago Style (17th ed.) Citation

Petrillo, Genevieve, and Lea Lyon. Keep Your Ear on the Ball. 1st hardcover ed. Gardiner, Me.: Tilbury House, 2007.

MLA (8th ed.) Citation

Petrillo, Genevieve, and Lea Lyon. Keep Your Ear on the Ball. 1st hardcover ed. Tilbury House, 2007.

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