APA (7th ed.) Citation

Hay, B., Hettiarachchi, N., & Galappatti, J. English for us. British Council.

Chicago Style (17th ed.) Citation

Hay, Bernie, Nirmali Hettiarachchi, and Janaki Galappatti. English for Us. Colombo: British Council.

MLA (9th ed.) Citation

Hay, Bernie, et al. English for Us. British Council.