Time preference and natural resource use by local communities : the case of Sinharaja Forest in Sri Lanka /
H.M. Gunatilake, W.A.R. Wickramasinghe, and P. Abeygunawardena.
- Metro Manila, Philippines : Asian Development Bank, c2007.
- 36 p. : ill. ; 28 cm.
- ERD working paper, no. 100. 1655-5252 .
- ERD working paper series, no. 100 1655-5252 .