APA (7th ed.) Citation

Penn, J., & Ruiz, R. Z. (2020). Why do hippos like mud? SASBADI SDN. BHD.

Chicago Style (17th ed.) Citation

Penn, Julie, and Ricard Zaplana Ruiz. Why Do Hippos like Mud? Petaling Jaya, Selangor: SASBADI SDN. BHD, 2020.

MLA (9th ed.) Citation

Penn, Julie, and Ricard Zaplana Ruiz. Why Do Hippos like Mud? SASBADI SDN. BHD, 2020.