APA (7th ed.) Citation

Graves, S., & Smith, J. (2003). Big Digger Helps Out. Parragon Books.

Chicago Style (17th ed.) Citation

Graves, Sue, and Jan Smith. Big Digger Helps Out. Bath: Parragon Books, 2003.

MLA (9th ed.) Citation

Graves, Sue, and Jan Smith. Big Digger Helps Out. Parragon Books, 2003.