APA (7th ed.) Citation

Ventura, M., & Shores, E. L. (2020). Building marble runs. Pebble.

Chicago Style (17th ed.) Citation

Ventura, Marne, and Erika L. Shores. Building Marble Runs. North Mankato, Minnesota: Pebble, 2020.

MLA (9th ed.) Citation

Ventura, Marne, and Erika L. Shores. Building Marble Runs. Pebble, 2020.