APA (7th ed.) Citation

Soo, Chanthra Balasingam, & Rathabai Kunchiram. (2005). Progressive English book 1 (3nd ed.). McGraw-Hill Education.

Chicago Style (17th ed.) Citation

Soo, Chanthra Balasingam, and Rathabai Kunchiram. Progressive English Book 1. 3nd ed. Shah Alam: McGraw-Hill Education, 2005.

MLA (8th ed.) Citation

Soo, et al. Progressive English Book 1. 3nd ed. McGraw-Hill Education, 2005.