Dyfyniad APA
Organisation for Economic Co-operation and Development. (2019). Global material resources outlook to 2060: Economic drivers and environmental consequences. Organisation for Economic Co-operation and Development.
Dyfyniad Arddull Chicago
Organisation for Economic Co-operation and Development. Global Material Resources Outlook to 2060: Economic Drivers and Environmental Consequences. Paris, France: Organisation for Economic Co-operation and Development, 2019.
Dyfyniad MLA
Organisation for Economic Co-operation and Development. Global Material Resources Outlook to 2060: Economic Drivers and Environmental Consequences. Organisation for Economic Co-operation and Development, 2019.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.