APA (7th ed.) Citation

Mathupema, G. A. (2006). English letters for everyday needs. M.D.Gunasena.

Chicago Style (17th ed.) Citation

Mathupema, G. A. English Letters for Everyday Needs. Colombo: M.D.Gunasena, 2006.

MLA (9th ed.) Citation

Mathupema, G. A. English Letters for Everyday Needs. M.D.Gunasena, 2006.

Warning: These citations may not always be 100% accurate.