APA (7th ed.) Citation

Bedford, D., & Poole, S. (2015). You're a big brother. Parragon Book.

Chicago Style (17th ed.) Citation

Bedford, David, and Susie Poole. You're a Big Brother. Bath: Parragon Book, 2015.

MLA (9th ed.) Citation

Bedford, David, and Susie Poole. You're a Big Brother. Parragon Book, 2015.