APA (7th ed.) Citation

Maslen, B. L., & Maslen, J. R. (2006). Bob books: Set 4, Complex words. Scholastic.

Chicago Style (17th ed.) Citation

Maslen, Bobby Lynn, and John R. Maslen. Bob Books: Set 4, Complex Words. New York: Scholastic, 2006.

MLA (9th ed.) Citation

Maslen, Bobby Lynn, and John R. Maslen. Bob Books: Set 4, Complex Words. Scholastic, 2006.