Gunatilake, H., & Gunaratne, L. L. (2002). Policy options for conservating Sri Lanka's natural forests. Economy and Environment Program for Southeast Asia (EEPSEA).
芝加哥风格引文Gunatilake, H.M, 与 Leslie L. Gunaratne. Policy Options for Conservating Sri Lanka's Natural Forests. Tanglin, Singapore: Economy and Environment Program for Southeast Asia (EEPSEA), 2002.
MLA引文Gunatilake, H.M, 与 Leslie L. Gunaratne. Policy Options for Conservating Sri Lanka's Natural Forests. Economy and Environment Program for Southeast Asia (EEPSEA), 2002.
警告：这些引文格式不一定是100％准确.