APA Style

Burns, M., Tilley, D. (1997). Spaghetti and meatballs for all! : a mathematical story . New York, USA: Scholastic Inc.

MLA Style

Burns, Marilyn., Tilley, Debbie. "Spaghetti and meatballs for all! : a mathematical story". New York, USA: Scholastic Inc, 1997. Text.