Abeyratne, P., Featherstone, W., & Tantrigoda, D. (2009). Assessment of EGM2008 over Sri Lanka, an area where 'fill-in' data were used in EGM2008. International Association of Geodesy and International Gravity Field Service.
Chicago Style (17th ed.) CitationAbeyratne, P., Will Featherstone, and D. Tantrigoda. Assessment of EGM2008 over Sri Lanka, an Area Where 'Fill-in' Data Were Used in EGM2008. International Association of Geodesy and International Gravity Field Service, 2009.
MLA (9th ed.) CitationAbeyratne, P., et al. Assessment of EGM2008 over Sri Lanka, an Area Where 'Fill-in' Data Were Used in EGM2008. International Association of Geodesy and International Gravity Field Service, 2009.
Warning: These citations may not always be 100% accurate.