APA (7th ed.) Citation

GOONETILLEKE, D., GOONERATNE, M., & JAYAWARDENE, M. (1988). Learning ENGLISH BOOK 1. LAKE HOUSE INVESTMENT LTD.

Chicago Style (17th ed.) Citation

GOONETILLEKE, D.C.R.A, MONA GOONERATNE, and MIRELLE JAYAWARDENE. Learning ENGLISH BOOK 1. Colombo: LAKE HOUSE INVESTMENT LTD, 1988.

MLA (9th ed.) Citation

GOONETILLEKE, D.C.R.A, et al. Learning ENGLISH BOOK 1. LAKE HOUSE INVESTMENT LTD, 1988.