APA Style

Keng, S, T., Cheng, Y, L. (2014). Mathematics 3 6th edition (6th edition). Singapore: Shinglee Publishers.

MLA Style

Keng, Seng, Teh., Cheng, Yee, Loh. "Mathematics 3 6th edition". 6th edition Singapore: Shinglee Publishers, 2014. Textbook.