APA (7th ed.) Citation

Ashton, M., De Soysa, N., & Gunatilleke, S. (2004). Sirilaka gas kolan athpotha. Sri Lanka Vanajiva Uruma Bharaya.

Chicago Style (17th ed.) Citation

Ashton, Mark, Neela De Soysa, and Savithri Gunatilleke. Sirilaka Gas Kolan Athpotha. Colombo: Sri Lanka Vanajiva Uruma Bharaya, 2004.

MLA (9th ed.) Citation

Ashton, Mark, et al. Sirilaka Gas Kolan Athpotha. Sri Lanka Vanajiva Uruma Bharaya, 2004.