APA-viite (7. p.)

Sajise, A. J., Samson, J. N. G., Quiao, L., Sibal, J., Raitzer, D. A., & Harder, D. (2021). Contingent valuation of nonmarket benefits in project economic analysis: A guide to good practice. Asian Development Bank.

Chicago-viite (17. p.)

Sajise, Asa Jose, Jindra Nuella G. Samson, Lotis Quiao, Jasmin Sibal, David A. Raitzer, ja Dieldre Harder. Contingent Valuation of Nonmarket Benefits in Project Economic Analysis: A Guide to Good Practice. Manila,Philippines: Asian Development Bank, 2021.

MLA-viite (9. p.)

Sajise, Asa Jose, et al. Contingent Valuation of Nonmarket Benefits in Project Economic Analysis: A Guide to Good Practice. Asian Development Bank, 2021.