Citazione Stile APA (7a Edizione)

Gunatilake, H., & Gunaratne, L. L. (2002). Policy options for conservating Sri Lanka's natural forests. Economy and Environment Program for Southeast Asia (EEPSEA).

Citazione stile Chigago Style (17a edizione)

Gunatilake, H.M, e Leslie L. Gunaratne. Policy Options for Conservating Sri Lanka's Natural Forests. Tanglin, Singapore: Economy and Environment Program for Southeast Asia (EEPSEA), 2002.

Citatione MLA (9a ed.)

Gunatilake, H.M, e Leslie L. Gunaratne. Policy Options for Conservating Sri Lanka's Natural Forests. Economy and Environment Program for Southeast Asia (EEPSEA), 2002.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.