APA (7th ed.) Citation

Primalani, V., Leng, C. M., Quek, K., & Meng, S. K. (2003). In step maths: Textbook. SNP Panpac.

Chicago Style (17th ed.) Citation

Primalani, Varsha, Chan Mei Leng, Karen Quek, and Sin Kwai Meng. In Step Maths: Textbook. Singapore: SNP Panpac, 2003.

MLA (8th ed.) Citation

Primalani, Varsha, et al. In Step Maths: Textbook. SNP Panpac, 2003.