APA (7th ed.) Citation

Di, L. K., & Lim, T. C. (1977). A Story about Teeth. Educational Publications Bureau.

Chicago Style (17th ed.) Citation

Di, Li Kai, and Tan Cheng Lim. A Story About Teeth. Singapore: Educational Publications Bureau, 1977.

MLA (9th ed.) Citation

Di, Li Kai, and Tan Cheng Lim. A Story About Teeth. Educational Publications Bureau, 1977.