APA (7th ed.) Citation

Premaratna, P. V. (1992). Speak English 1. M.D. Gunasena & Co., Ltd.

Chicago Style (17th ed.) Citation

Premaratna, P. Vithana. Speak English 1. Colombo: M.D. Gunasena & Co., Ltd, 1992.

MLA (9th ed.) Citation

Premaratna, P. Vithana. Speak English 1. M.D. Gunasena & Co., Ltd, 1992.