Gunatilake, H., & Gunaratne, L. L. (2002). Policy options for conservating Sri Lanka's natural forests. Economy and Environment Program for Southeast Asia (EEPSEA).
Čikaški stil citiranja (17. izdanje)Gunatilake, H.M, i Leslie L. Gunaratne. Policy Options for Conservating Sri Lanka's Natural Forests. Tanglin, Singapore: Economy and Environment Program for Southeast Asia (EEPSEA), 2002.
MLA način citiranja (9. izdanje)Gunatilake, H.M, i Leslie L. Gunaratne. Policy Options for Conservating Sri Lanka's Natural Forests. Economy and Environment Program for Southeast Asia (EEPSEA), 2002.
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