Markandya, A., & Galinato, S. P. (2005). How substitutable is natural capital? World Bank.
Dyfyniad Arddull ChicagoMarkandya, Anil, and Suzettte Pedroso Galinato. How Substitutable Is Natural Capital? Washington, D.C: World Bank, 2005.
Dyfyniad MLAMarkandya, Anil, and Suzettte Pedroso Galinato. How Substitutable Is Natural Capital? World Bank, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.