APA aipamena

Gunatilake, H. M., Wickramasinghe, W., & Abeygunawardena, P. (2007). Time preference and natural resource use by local communities: The case of Sinharaja Forest in Sri Lanka. Asian Development Bank.

Chicago Style aipamena

Gunatilake, Herath M., Wimal Wickramasinghe, and P. Abeygunawardena. Time Preference and Natural Resource Use by Local Communities: The Case of Sinharaja Forest in Sri Lanka. Metro Manila, Philippines: Asian Development Bank, 2007.

MLA aipamena

Gunatilake, Herath M., et al. Time Preference and Natural Resource Use by Local Communities: The Case of Sinharaja Forest in Sri Lanka. Asian Development Bank, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.