APA (7th ed.) Citation

Ratnayake, R. M. R. B., Dharmasiri, N., Mosback, G. P., & Randles, M. L. (1986). English every day. Educational Publication Department.

Chicago Style (17th ed.) Citation

Ratnayake, R. M. R. B., Nimal Dharmasiri, G. P. Mosback, and M. L. Randles. English Every Day. Colombo: Educational Publication Department, 1986.

MLA (9th ed.) Citation

Ratnayake, R. M. R. B., et al. English Every Day. Educational Publication Department, 1986.